Miniwatt laser diode and coupling method
A laser diode and low-power technology, applied in lasers, laser components, semiconductor lasers, etc., can solve the problems of insufficient stability of optical power of the optical emission sub-module, small luminous power, high and low temperature characteristics, and long-term stability deterioration
Active Publication Date: 2013-11-20
JIANGSU ALLRAY
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Problems solved by technology
When it is necessary to make an optical emission sub-module with a small luminous power, the optical coupling is adjusted away from the optimal coupling state to reduce the coupling efficiency, and finally obtain an optical emission sub-module with a small luminous power
Because this method adopts the method of coupling and defocusing, the optical power of the final product optical emission sub-module is not stable enough, and the high and low temperature characteristics and long-term stability of the product are deteriorated.
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[0012] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0013] see figure 1 and figure 2 As shown, the present invention discloses a low-power laser diode 1 , including a stem 11 , a heat sink 12 fixed to the stem 11 , a laser diode chip 13 connected to the heat sink 12 , and a cap 14 . The laser diode chip 13 is located between the tube base 11 and the tube cap 14 , the forward light emitting surface 301 of the laser diode chip 13 faces the tube base 11 , and the back light emitting surface 302 of the laser diode chip 13 f...
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The invention discloses a miniwatt laser diode which comprises a diode seat, a heat sink fixed with the diode seat, and a laser diode chip and a diode cap connected to the heat sink, wherein the laser diode chip is placed between the diode seat and the diode cap, the emission surface of forward lights of the laser diode chip is orientated to the diode seat, and the emission surface of backward lights of the laser diode chip is orientated to the diode cap. The backward lights emitted by the emission side of the backward lights of the laser diode chip are lower than the forward lights emitted by the emission side of the forward lights of the laser diode chip, so that a miniwatt laser diode chip can be obtained via the method.
Description
technical field [0001] The invention relates to the field of optical devices, in particular to a laser diode. Background technique [0002] Traditional laser diodes have higher luminous power and higher coupling efficiency, and the optical power of the optical emission sub-module obtained by coupling is also higher. When it is necessary to manufacture an optical emission sub-module with a small luminous power, the coupling efficiency is reduced by adjusting the optical coupling away from the optimal coupling state, and finally an optical emission sub-module with a relatively small luminous power is obtained. Because this method adopts the coupling defocusing method, the optical power of the final product optical emission sub-module is not stable enough, and the high and low temperature characteristics and long-term stability of the product are deteriorated. [0003] In order to improve the stability of the product, it is necessary to provide a new technical solution to solv...
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IPC IPC(8): H01S5/30H01S5/00
Inventor 刘文娟薛京谷
Owner JIANGSU ALLRAY