Coherent light generators – Particular beam control device – Mode locking
Reexamination Certificate
2005-12-08
2010-06-08
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Mode locking
Reexamination Certificate
active
07733923
ABSTRACT:
A mode-locked laser that has an optical cavity containing multiple optical amplifiers, each dedicated to a respective spectral portion of an optical signal generated by the laser, wherein the dispersion effects are managed by utilizing a separate intra-cavity phase tuner for each such spectral portion and/or by having appropriately configured waveguides corresponding to different spectral portions. Advantageously, a relatively wide combined gain spectrum provided by the optical amplifiers and the intra-cavity dispersion compensation provided by the phase tuners and/or waveguides enable this laser to realize a mode-locking regime that results in the emission of an optical pulse train having a relatively wide frequency spectrum. In one embodiment, the optical cavity of the mode-locked laser has a perfectly spectrally sampled arrayed waveguide grating (AWG) that is configured to divide the optical signal into the spectral portions and apply these portions to the respective waveguides, optical amplifiers, and phase tuners.
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Alcatel-Lucent USA Inc.
Gruzdkov Yuri
Harvey Minsun
King Joshua
Mendelsohn Steve
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