Double-locked laser diode for microwave photonics applications

Semiconductor lasers subjected to near-resonant external optical injection can exhibit strong oscillations of the output power due to a dynamic instability in the coupling of the gain medium to the circulating optical field. The oscillation frequency depends on the operating point of the injected la...

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Bibliographic Details
Published in:IEEE photonics technology letters 1999-11, Vol.11 (11), p.1476-1478
Main Authors: Simpson, T.B., Doft, F.
Format: Article
Language:English
Subjects:
Circulating
Diode lasers
Frequency
Gain
Instability
Joining
Laser applications
Lasers
Masers
Microwave photonics
Optical coupling
Optical modulation
Oscillations
Power generation
Power lasers
Semiconductor lasers
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Summary:Semiconductor lasers subjected to near-resonant external optical injection can exhibit strong oscillations of the output power due to a dynamic instability in the coupling of the gain medium to the circulating optical field. The oscillation frequency depends on the operating point of the injected laser and the strength and frequency offset of the injected optical signal. Adding a reference current modulation to the dc-bias current can induce the oscillation frequency of the optical power to become locked to the reference. Tunable, locked output from 9.5 to 17.1 GHz is demonstrated, with a linewidth below the 1-kHz resolution limit of the measurement apparatus.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.803084