A high-efficiency optical module laser

Abstract

The present invention discloses a high-efficiency optical module laser, which relates to an optical module circuit, including a laser and a resonant cavity module; the resonant cavity module includes a first total reflection mirror, a second total reflection mirror, a partial reflection mirror, and a PN junction module. The PN junction module includes an outer gain medium, a P terminal, an inner gain medium, and an N terminal, which are coiled sequentially from outer to inner. In the present invention, the PN junction module adopts a spiral coil structure, and the outer gain medium, the P terminal, the inner gain medium, and the N terminal all adopt a spiral tape structure. The gain medium has two layers, an inner and an outer layer, which are respectively attached to the inner wall surfaces of the P terminal and the N terminal, and the P terminal and the N terminal are separated. This increases the stimulated radiation area of ​​the two layers of gain medium, effectively improves the efficiency of photon generation, and thus greatly improves the efficiency of the laser.

Description

Technical Field

[0001] The present invention relates to the technical field of optical module lasers, and in particular to an optical module laser with high efficiency. Background Art

[0002] Optical communication technology uses light waves as a transmission medium. Light waves and radio waves are both electromagnetic waves, but light waves have higher frequencies and shorter wavelengths than radio waves. Therefore, optical communication offers advantages such as wide transmission bandwidth, high communication capacity, and strong resistance to electromagnetic interference.

[0003] With the rapid development of optical communication technology, the advantages of optical modules have gradually become apparent, and their application areas and applicability have gradually become popular and promoted. However, in existing technologies, the actual working efficiency of the lasers in optical modules is not high, which is mainly caused by the low photon excitation rate of the lasers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a high-efficiency optical module laser that effectively increases the photon stimulation area.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a high-efficiency optical module laser, involving an optical module circuit, including a laser and a resonant cavity module;

[0006] The resonant cavity module includes a first total reflection mirror, a second total reflection mirror, a partial reflection mirror and a PN junction module, wherein the first total reflection mirror and the partial reflection mirror are respectively mounted on the front and back of the PN junction module, the second total reflection mirror is mounted on the outer peripheral surface of the PN junction module, and the second total reflection mirror is sandwiched between the first total reflection mirror and the partial reflection mirror, and is matched with the first total reflection mirror and the partial reflection mirror;

[0007] The PN junction module includes an outer layer gain medium, a P terminal, an inner layer gain medium and an N terminal which are sequentially wound from the outer layer to the inner layer.

[0008] Furthermore, the PN junction module has a spiral coil structure, the outer gain medium, the P end, the inner gain medium and the N end all have a spiral tape structure, the thickness of the outer gain medium is equal to that of the inner gain medium, the thickness of the P end is equal to that of the N end, the P end is adhered and wound on the inner wall surface of the outer gain medium, the inner gain medium is adhered and wound on the inner wall surface of the P end, and the N end is adhered and wound on the inner wall surface of the inner gain medium.

[0009] Furthermore, it also includes a P-end circuit board and an N-end circuit board. The P-end circuit board is mounted on the wall of the P-end facing the outward end, and the N-end circuit board is mounted on the wall of the N-end facing the outward end. The P-end circuit board and the N-end circuit board serve as the two poles of the laser and are respectively connected to the optical module circuit.

[0010] Furthermore, the second total reflection mirror is an annular structure with a gap, and the second total reflection mirror is adhered and wrapped around the outer wall surface of the outer gain medium, and the P-end circuit board and the N-end circuit board are located at the position of the gap.

[0011] Furthermore, the first total reflection mirror and the partial reflection mirror are both spiral disk structures of equal size, and the P-end circuit board, N-end circuit board, first total reflection mirror, second total reflection mirror, and partial reflection mirror are spliced ​​and matched with each other to form a cavity shell structure that is completely fitted and covered on the outside of the PN junction module.

[0012] Furthermore, it also includes an emission port, which is opened on the partial reflector, and the aperture of the emission port is much smaller than the disk diameter of the partial reflector.

[0013] Furthermore, the P-terminal is P-type germanium, and the N-terminal is N-type silicon.

[0014] Furthermore, the P-terminal is P-type silicon, and the N-terminal is N-type germanium.

[0015] Furthermore, the optical module circuit includes a voltage stabilizing circuit and a filtering circuit. The voltage stabilizing circuit includes a voltage stabilizing diode VD3, conducting diodes VD1 and VD2, and the filtering circuit includes a differential mode choke C1 and common mode chokes C2 and C3.

[0016] The beneficial effects of the present invention are embodied in:

[0017] In the present invention, after the laser is connected to the optical module circuit, current flows through the resonant cavity module, exciting the gain medium to generate photons. The PN junction module adopts a spiral coil structure, and the outer gain medium, P end, inner gain medium and N end all adopt a spiral tape structure. The gain medium has two layers, inner and outer, which are respectively attached to the inner wall surfaces of the P end and the N end, and the P end and the N end are isolated, thereby increasing the stimulated radiation area of ​​the two layers of gain medium, effectively improving the efficiency of photon generation, and thus greatly improving the efficiency of the laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is an isometric view of a laser resonant cavity module according to an embodiment of the present invention.

[0019] Figure 2 FIG. 1 is an exploded view of a laser resonant cavity module according to an embodiment of the present invention.

[0020] Figure 3 FIG. 1 is an exploded view of a PN junction module according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of a laser circuit of an optical module according to an embodiment of the present invention.

[0022] The components in the accompanying drawings are marked as follows: 1. resonant cavity module; 2. P-end circuit board; 3. N-end circuit board; 4. first total reflection mirror; 5. second total reflection mirror; 6. partial reflection mirror; 7. PN junction module; 8. outer gain medium; 9. P-end; 10. inner gain medium; 11. N-end; 12. emission port. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features.

[0024] See also Figures 1-4 .

[0025] The present invention provides a high-efficiency optical module laser, which relates to an optical module circuit, including a laser and a resonant cavity module 1;

[0026] The resonant cavity module 1 includes a first total reflection mirror 4, a second total reflection mirror 5, a partial reflection mirror 6 and a PN junction module 7, wherein the first total reflection mirror 4 and the partial reflection mirror 6 are respectively mounted on the front and back of the PN junction module 7, the second total reflection mirror 5 is mounted on the outer peripheral surface of the PN junction module 7, and the second total reflection mirror 5 is sandwiched between the first total reflection mirror 4 and the partial reflection mirror 6, and is matched with the first total reflection mirror 4 and the partial reflection mirror 6;

[0027] The PN junction module 7 includes an outer gain medium 8 , a P terminal 9 , an inner gain medium 10 and an N terminal 11 , which are sequentially wound from the outer layer to the inner layer.

[0028] In the present invention, after the laser is connected to the optical module circuit, current flows through the resonant cavity module, exciting the gain medium to generate photons. The PN junction module adopts a spiral coil structure, and the outer gain medium, P end, inner gain medium and N end all adopt a spiral tape structure. The gain medium has two layers, inner and outer, which are respectively attached to the inner wall surfaces of the P end and the N end, and the P end and the N end are isolated, thereby increasing the stimulated radiation area of ​​the two layers of gain medium, effectively improving the efficiency of photon generation, and thus greatly improving the efficiency of the laser.

[0029] In one embodiment, the PN junction module 7 has a spirally wound structure, and the outer gain medium 8, P-terminal 9, inner gain medium 10, and N-terminal 11 all have a spirally wound tape structure. The outer gain medium 8 and the inner gain medium 10 have equal thicknesses, and the P-terminal 9 and the N-terminal 11 have equal thicknesses. The P-terminal 9 is adhered to and wrapped around the inner wall of the outer gain medium 8, the inner gain medium 10 is adhered to and wrapped around the inner wall of the P-terminal 9, and the N-terminal 11 is adhered to and wrapped around the inner wall of the inner gain medium 10. This design results in the gain medium having two inner and outer layers, adhered to the inner walls of the P-terminal 9 and the N-terminal 11, respectively, separating the P-terminal 9 and the N-terminal 11. The four layers are ultimately stacked and coiled together, thereby increasing the stimulated emission area of ​​the two gain medium layers and effectively improving the efficiency of photon generation by the gain medium.

[0030] In one embodiment, the laser further includes a P-end circuit board 2 and an N-end circuit board 3. The P-end circuit board 2 is mounted on the outward-facing wall of the P-end 9, while the N-end circuit board 3 is mounted on the outward-facing wall of the N-end 11. The P-end circuit board 2 and the N-end circuit board 3 serve as the two poles of the laser and are respectively connected to the optical module circuit. With this design, when the laser is connected to the optical module circuit, current flows through the resonant cavity module 1, exciting the outer gain medium 8 and the inner gain medium 10 to produce photons.

[0031] In one embodiment, the P-end circuit board 2 is an anode, and the N-end circuit board 3 is a cathode.

[0032] In another embodiment, the P-end circuit board 2 is a cathode, and the N-end circuit board 3 is an anode.

[0033] In one embodiment, the second total reflection mirror 5 is an annular structure with a gap, and the second total reflection mirror 5 is adhered and wrapped around the outer wall surface of the outer layer gain medium 8, and the P-end circuit board 2 and the N-end circuit board 3 are located at the position of the gap;

[0034] The first total reflection mirror 4 and the partial reflection mirror 6 are both spiral disk structures of equal size. The P-end circuit board 2, the N-end circuit board 3, the first total reflection mirror 4, the second total reflection mirror 5, and the partial reflection mirror 6 are spliced ​​and matched with each other to form a cavity shell structure that completely fits and covers the outside of the PN junction module 7. With this design, excited photons can be totally reflected within the cavity shell structure, and the cavity shell structure seals and surrounds the outside of the PN junction module 7 to prevent photons from leaking out.

[0035] In one embodiment, an emission port 12 is further included. The emission port 12 is provided on the partial reflector 6, and the aperture of the emission port 12 is much smaller than the disk diameter of the partial reflector 6. With this design, the stimulated photons are totally reflected by the first total reflector 4 and the second total reflector 5, and then emitted from the emission port 12 provided on the partial reflector 6, forming a laser.

[0036] In one embodiment, the P-terminal 9 is P-type germanium, and the N-terminal 11 is N-type silicon, which meets design requirements and is easy to implement.

[0037] In another embodiment, the P-terminal 9 is P-type silicon, and the N-terminal 11 is N-type germanium, which meets the design requirements and is easy to implement.

[0038] In one embodiment, the optical module circuit includes a voltage stabilization circuit and a filtering circuit. The voltage stabilization circuit includes a voltage stabilization diode VD3 and conducting diodes VD1 and VD2. The filtering circuit includes a differential mode choke C1 and common mode chokes C2 and C3. With this design, C2 and C3 are both grounded, forming a common mode choke. The voltage stabilization circuit maintains a stable voltage output from the optical module circuit, while the filtering circuit filters pulsating voltages, facilitating more stable photon emission from the laser.

[0039] In the present invention, in conjunction with the appended Figure 4 From the schematic diagram of the optical module laser circuit, we can see that A1 and A2 are current sources, and V1 is a voltage source. Since Ve's voltage to ground is stabilized by the voltage-stabilizing diode VD3, it is equivalent to Ve being constant, that is, the reference voltage. Then, the voltage change at the Vb2 end can reflect the change of Vout:

[0040] When the originally stable voltage Vout in the optical module circuit shows a decreasing trend, it means that Vb2 is decreasing. Then, Vc2, which is turned on after being amplified by the current source, is increased relative to Vb2, which is equivalent to an increase in the voltage drop of Vc2e2. Since Vc2 and Vb2 are directly coupled, Vb1 is also increased. The conducting diode VD2 is further turned on, which is equivalent to a decrease in the voltage drop of Vc1e1. Maintaining the output voltage unchanged is equivalent to an increase in Vout, thereby keeping the voltage stable.

[0041] On the contrary, when the originally stable voltage Vout in the optical module circuit has an increasing trend, it means that Vb2 is increasing. Then, Vc2, which is turned on after being amplified by the current source, is reduced relative to Vb2, which is equivalent to a reduction in the voltage drop of Vc2e2. Since Vc2 and Vb2 are directly coupled, Vb1 is also reduced. The conduction of the conducting diode VD2 is weakened, which is equivalent to an increase in the voltage drop of Vc1e1. Maintaining the output voltage unchanged is equivalent to reducing Vout, thereby keeping the voltage stable.

[0042] The output voltage passes through the differential mode choke C1, the common mode choke C2 and C3, filtering out the pulse voltage and keeping the voltage more stable, which is conducive to the laser exciting photons more stably.

[0043] It should be understood that the examples and implementation methods described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency optical module laser, relating to an optical module circuit, including a laser, characterized in that: Also includes a resonant cavity module (1); The resonant cavity module (1) comprises a first total reflection mirror (4), a second total reflection mirror (5), a partial reflection mirror (6) and a PN junction module (7); the first total reflection mirror (4) and the partial reflection mirror (6) are respectively mounted on the front and back sides of the PN junction module (7); the second total reflection mirror (5) is mounted on the outer peripheral surface of the PN junction module (7); the second total reflection mirror (5) is sandwiched between the first total reflection mirror (4) and the partial reflection mirror (6), and is matched with the first total reflection mirror (4) and the partial reflection mirror (6); The PN junction module (7) comprises an outer layer gain medium (8), a P terminal (9), an inner layer gain medium (10), and an N terminal (11) which are sequentially wound from the outer layer to the inner layer; The PN junction module (7) is in a spiral coil structure, the outer gain medium (8), the P end (9), the inner gain medium (10) and the N end (11) are all in a spiral tape structure, the thickness of the outer gain medium (8) is equal to that of the inner gain medium (10), the thickness of the P end (9) is equal to that of the N end (11), the P end (9) is adhered and wound on the inner wall surface of the outer gain medium (8), the inner gain medium (10) is adhered and wound on the inner wall surface of the P end (9), and the N end (11) is adhered and wound on the inner wall surface of the inner gain medium (10); The first total reflection mirror (4) and the partial reflection mirror (6) both have spiral disk structures of equal size, and the P-end circuit board (2), the N-end circuit board (3), the first total reflection mirror (4), the second total reflection mirror (5), and the partial reflection mirror (6) are spliced ​​and matched with each other to form a cavity shell structure that is completely fitted and covered on the outside of the PN junction module (7).

2. The high-efficiency optical module laser according to claim 1, wherein: It also includes a P-end circuit board (2) and an N-end circuit board (3), wherein the P-end circuit board (2) is mounted on the wall of the P-end (9) facing the outward end, and the N-end circuit board (3) is mounted on the wall of the N-end (11) facing the outward end. The P-end circuit board (2) and the N-end circuit board (3) serve as the two poles of the laser and are respectively connected to the optical module circuit.

3. The high-efficiency optical module laser according to claim 2, wherein: The second total reflection mirror (5) is an annular structure with a notch, and the second total reflection mirror (5) is adhered to and wound on the outer wall surface of the outer layer gain medium (8), and the P-end circuit board (2) and the N-end circuit board (3) are located at the position of the notch.

4. The high-efficiency optical module laser according to claim 1, wherein: It also includes an emission port (12), which is opened on the partial reflector (6), and the aperture of the emission port (12) is much smaller than the disk diameter of the partial reflector (6).

5. The high-efficiency optical module laser according to claim 1, wherein: The P-terminal (9) is P-type germanium, and the N-terminal (11) is N-type silicon.

6. The high-efficiency optical module laser according to claim 1, wherein: The P-terminal (9) is P-type silicon, and the N-terminal (11) is N-type germanium.

7. The high-efficiency optical module laser according to claim 1, wherein: The optical module circuit includes a voltage stabilizing circuit and a filtering circuit. The voltage stabilizing circuit includes a voltage stabilizing diode VD3, conducting diodes VD1 and VD2, and the filtering circuit includes a differential mode choke C1 and common mode chokes C2 and C3.

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