Stabilization of an injection locked harmonically mode-locked laser via polarization spectroscopy for frequency comb generation
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsPeter J. Delfyett, Charles Williams, Edris Sarailou
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Abstract
Stabilization of an injection locked optical frequency comb is achieved through polarization spectroscopy of an active laser cavity, eliminating optical PM sidebands inherent in previous stabilization methods. Optical SNR of 35 dB is achieved. A monolithic AlInGaAs quantum well Fabry-Prot laser injection locked to a passively mode-locked monolithic laser is presented here. The FP laser cavity can be used as a true linear interferometric intensity modulator for pulsed light.
Claims14
An optical frequency comb source producing a plurality of optical frequencies on a periodic frequency grid.
An optical signal processing system, comprising:
- An injection laser controlled by a by a variable optical attenuator, in optical connection with;
- An optical isolator coupled to a semiconductor optical amplifier and a light intensity modulator, and couplers for laser output and injection input.
An optical interferometer comprising an arc-sine phase modulator in one arm of the Interferometer.
A fabry perot laser comprising a plurality of arc-sine phase modulators, each with a different of free running frequencies (resonant frequencies).
An optical interferometer with a fabry perot laser in one arm of the interferometer, whose resonant frequencies are periodic in frequency and match that of an input mode-locked laser, such that the input mode-locked laser injection locks the fabry perot laser.
A Fabry-Perot Laser chip for use as a resonant cavity, wherein the improvement comprises preparing said Fabry-Perot Laser chip from InGaAsPwith an upper cladding of InP overlaying a wet etch stop layer of InGaAsP.
Dependencies are inferred from the claim text.