Ultrashort pulse generator based on double pump parametric process
An ultra-short pulse and generator technology, applied in the field of optical information, can solve problems such as difficulties, and achieve the effects of eliminating polarization effects, easy integration, and high pulse repetition rate
Active Publication Date: 2013-04-03
INNO LASER TECH CORP LTD
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Problems solved by technology
Intensity modulators can also generate pulses, but the bandwidth limitations of the electrical domain make it difficult to generate shorter pulses
Method used
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Embodiment Construction
[0017] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, the ultrashort pulse generator based on the double-pump parametric process includes a first pump source 1-1 and a second pump source 1-2, a first erbium-doped fiber amplifier 2-1 and a second erbium-doped fiber amplifier 2-2, the first intensity modulator 3-1, the first phase modulator 4-1, the first polarization controller 5-1 and the second polarization controller 5-2, the first optical isolator 6-1, the second A second optical isolator 6-2 and a third optical isolator 6-3, a first coupler 7-1 and a second coupler 7-2, a high nonlinear optical fiber 8, and a signal source 9. The pump waves generated by the pump source 1-1 and the pump source 1-2 are equidistantly distributed on both sides of the zero dispersion wavelength 1550nm, and the wavelength range is 1530nm-1570nm. The wavelength range of the signal generate...
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Abstract
The invention discloses an ultrashort pulse generator based on a double pump parametric process. The ultrashort pulse generator comprises two pump sources, two erbium-doped optical fiber amplifiers, an intensity modulator, a phase modulator, two polarization controllers, three light isolators, two couplers, a high nonlinear optical fiber and a signal source; a first pump wave source sequentially passes through a first erbium-doped optical fiber amplifier, the intensity modulator, the phase modulator, a first polarization controller and a first light isolator to be connected with a first port of a first coupler; a second pump wave source sequentially passes through a second erbium-doped optical fiber amplifier, a second polarization controller and a second light isolator to be connected with a second port of the first coupler; a public port of the first coupler is connected with a first port of a second coupler through an optical fiber; the signal source is connected with a first port of a third isolator through an optical fiber, and a second port of the third isolator is connected with a second port of the second coupler through an optical fiber; and a public port of the second coupler is connected to one section of the high nonlinear optical fiber through an optical fiber.
Description
technical field [0001] The invention belongs to the field of optical information technology, and in particular relates to an ultrashort pulse generator based on a double-pump parameter process. Background technique [0002] With the rapid development of communication technology, reliable and tunable high repetition rate pulses play an increasingly important role in the field of optical communication technology. In the backbone communication network, the pulse with lower duty cycle can be used to alleviate the dispersion effect in optical fiber communication. In addition, this short pulse with a high repetition rate can be applied to signal demultiplexing and all-optical sampling. Intensity modulators can also generate pulses, but the bandwidth limitations of the electrical domain make it difficult to generate shorter pulses. Mode-locked lasers are also a way to get short pulses, but they require electronic phase-locked loops to maintain stability, and the cavity length of ...
Claims
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Login to View More IPC IPC(8): H01S3/09H01S3/067
Inventor 李齐良王哲丰昀胡淼周雪芳钱胜
Owner INNO LASER TECH CORP LTD