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  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1986),
  • paper MCC3

Observation of FM-laser oscillations including a subharmonic resonance effect in an external cavity semiconductor laser

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Abstract

Mode locking in semiconductor lasers to produce ultrashort continuous optical pulse trains has been investigated by numerous authors. Another aspect of such mode locking is to produce a frequency-modulated (FM) output from a laser, that is, FM-laser oscillations. Such oscillations were first demonstrated in He-Ne1 and then in Nd:YAG lasers.2 With respect to FM-laser oscillation in an external cavity semiconductor laser, an extremely large frequency deviation is feasible because of its wide gain bandwidth.2 On the other hand, direct frequency modulation in a solitary laser diode (LD)3 does not facilitate good use of the full gain bandwidth.

© 1986 Optical Society of America

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