| 摘要 |
A linear laser having a dual frequency output is shown where the output frequencies may be varied while maintaining a constant frequency separation. The laser includes a first fully reflective mirror spaced apart from a second partially reflective mirror defining a resonant cavity, a non-reciprocal element disposed within the cavity between the two mirrors, a magnetic field forming device at the non-reciprocal element and means for varying the resonant frequency of the cavity.
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