Abstract
Oscillator isolation is critical in the design of a phase conjugated master-oscillator power-amplifier (MOPA) since the phase conjugated feedback is perfectly aligned to return to the master oscillator. This feedback may degrade the oscillator power and beam qualify. In the simplest case, the oscillator and phase conjugate mirror can be considered to form a compound resonator. However, some phase conjugators, such as stimulated Brillouin scattering (SBS), produce a frequency shift, so analysis of the system as a compound resonator is no longer appropriate. The experimental results and analyses presented here specifically consider the case of feedback with a frequency shift.
© 1990 Optical Society of America
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