Pulsed, frequency stable, narrow linewidth master oscillator and phase conjugation mirror therefor with semiconductor material having bandgap for nonlinear resonance
AssigneeHughes Aircraft Company
InventorKotik K. Lee
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Abstract
A phase conjugation mirror (20) for use in a phase conjugation resonator (1). The phase conjugation mirror provides a nonlinear resonance enhancement for a coherent optical signal incident thereon. The phase conjugation mirror is comprised of a semiconductor material having a characteristic bandgap energy selected to be at an absorption bandgap edge, or slightly greater than the absorption bandgap edge, for the coherent optical signal.
Claims18
An improved phase conjugation mirror for use in a phase conjugation resonator, the improvement comprising said phase conjugation mirror being comprised of a semiconductor material having a characteristic bandgap energy near and at least as great as the absorption bandgap edge for the coherent optical signal whereby a nonlinear resonance enhancement for a coherent optical signal incident thereon is provided.
An improved optical system, said system of the type having
- master oscillator means for generating a narrow line continuous wave coherent optical signal;
- means, having an input coupled to an output of said master oscillator means, for frequency modulating said coherent optical signal;
- and
- a phase conjugation resonator having an input coupled to an output of said frequency modulating means, said phase conjugation resonator including a phase conjugation mirror, the improvement comprising:
- said phase conjugation mirror comprised of a semiconductor material having a characteristic bandgap energy near and at least as great as the absorption bandgap edge for the coherent optical signal whereby a nonlinear resonance enhancement for a coherent optical signal incident thereon is provided.
Dependencies are inferred from the claim text.