Integrated Semiconductor Laser Optical Phase Lock Loops
نویسندگان
چکیده
منابع مشابه
Coherent combining of the output of two semiconductor lasers using optical phase-lock loops.
We have experimentally demonstrated current-injection optical phase-lock loops (OPLLs) based on commercial single-section semiconductor distributed-feedback (DFB) lasers. Using two parallel OPLLs, we have obtained 87% efficient coherent power combining of the two DFB lasers. The rms differential phase error between the two lasers is about 30 degrees .
متن کاملSideband locking of a single-section semiconductor distributed-feedback laser in an optical phase-lock loop.
The bandwidth and performance of optical phase-lock loops (OPLLs) using single-section semiconductor lasers (SCLs) are severely limited by the nonuniform frequency modulation response of the lasers. It is demonstrated that this restriction is eliminated by the sideband locking of a single-section distributed-feedback SCL to a master laser in a heterodyne OPLL, thus enabling a delay-limited loop...
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Using heterodyne Optical Phase-Locked Loops (OPLLs), two 1W high power 1550 nm master-oscillator-power-amplifier (MOPA) semiconductor lasers operating as current controlled oscillators are phase-locked to a 1 mW reference laser. The signals of the two MOPAs are then coherently combined and their mutual coherence is studied. In each OPLL, the acquisition range is increased to +/-1.1GHz with the ...
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We present results for an heterodyne optical phase-lock loop (OPLL), monolithically integrated on InP with external phase detector and loop filter, which phase locks the integrated laser to an external source, for offset frequencies tuneable between 0.6 GHz and 6.1 GHz. The integrated semiconductor laser emits at 1553 nm with 1.1 MHz linewidth, while the external laser has a linewidth less than...
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We demonstrate the generation of wideband frequency sweeps using a semiconductor laser in an optoelectronic phase-lock loop. The rate of the optical frequency sweep is locked to and determined by the frequency of a reference electronic signal, leading to an agile, high coherence sweptfrequency source for laser ranging and 3-D imaging applications. Using a reference signal of constant frequency,...
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ژورنال
عنوان ژورنال: IEEE Journal of Selected Topics in Quantum Electronics
سال: 2018
ISSN: 1077-260X,1558-4542
DOI: 10.1109/jstqe.2017.2711581