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US 2003/0147441 A1Published application
Laser with a resonant optical reflector
AssigneeLucent Technologies Inc.
InventorsYuliya Anatolyevna Akulova, Rudolf Feodor Kazarinov
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Abstract
A laser includes an optical cavity resonator having first and second reflectors and an active region interposed between the reflectors. The second reflector includes a resonant optical reflector having an optical gain medium.
Claims11
A laser comprising:
- an optical cavity resonator having first and second reflectors and an active region interposed between said reflectors;
- characterized in that
- the second reflector comprises a resonant optical reflector (ROR) that includes an optical gain medium.
A tunable semiconductor laser comprising
- an optical cavity resonator having first and second reflectors and an active region interposed between said reflectors;
- characterized in that
- the second reflector comprises a multiplicity of resonant optical reflectors (RORs) each of which includes an optical gain medium and each of which is resonant at a different wavelength,
- a first optical waveguide that includes the active region,
- a second optical waveguide that includes the ROR gain media, the second waveguide being weakly coupled to the first waveguide, and
- means for pumping selected ones of the ROR gain media so that said laser emits radiation at one or more wavelengths corresponding to the selected ROR gain media.
3 more elements
A method of tuning a laser, the laser including an optical cavity resonator formed by a first reflector and a resonant optical reflector (ROR) with an active region disposed in the resonator and a gain medium disposed in the ROR, comprising the steps of:
- (a) pumping the active region to produce stimulated optical emission;
- and
- (b) pumping the gain region to increase the amount of radiation that the ROR reflects back into the resonator.
Dependencies are inferred from the claim text.