We demonstrate in a GaAlAs laser under intermodal optical injection, the existence of a domain, outside the injection‐locking range, where the sidemode becomes the dominant lasing mode and gives rise to nearly degenerate four‐wave‐mixing processes. It is shown experimentally and by computer simulation that this domain is asymmetric with respect to the frequency detuning, and bistability of its borderline occurs, with a characteristic dependence on the injected light power.
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© 1992 American Institute of Physics.
1992
American Institute of Physics
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