Injection seeder
Injection seeders are devices that direct the output of small "seed" lasers into the cavity of a much larger laser to stabilize the latter's output. Most seed lasers are stable, single-frequency lasers that emit within the linewidth of the larger laser's gain medium. The single frequency encourages the larger laser to lase in a single longitudinal mode, and the seed laser can also improve the laser's spatial profile and improve the M2 parameter.
Seed lasers can be continuous or pulsed. Seeding a pulsed laser can reduce variations in the output energy and timing (jitter) from pulse to pulse, and smooth out temporal variations within the pulse. Many commercial lasers use a laser diode as a seeding source.
See also
References
- [http://www.iap.tu-darmstadt.de/lqo/research/spotlight/injection-seeding/ Spotlight: Injection Seeding] {{Webarchive|url=https://web.archive.org/web/20220809040143/http://www.iap.tu-darmstadt.de/lqo/research/spotlight/injection-seeding/ |date=2022-08-09 }}, Technical University of Darmstadt
Bibliography
- {{cite journal |first=V.L. |last=Boichenko |author2=Zasavitskii, I.I. |author3=Kosichkin, Yu.V. |author4=Tarasevich, A.P. |author5=Tunkin, V.G. |author6= Shotov, A.P. |title=A picosecond optical parametric oscillator with amplification of the tunable semiconductor laser radiation |journal=Sov. J. Quant. Electronics |volume=11 |issue=1 |pages=141–143 |year=1984|doi=10.1070/QE1984v014n01ABEH004663 }}
- {{cite journal |first=S.A. |last=Magnitskii |author2=Malakhova, V.I. |author3=Tarasevich, A.P. |author4=Tunkin, V.G. |author5= Yakubovich, S.D. |title=Generation of bandwidth-limited tunable picosecond pulses by injection-locked optical parametric oscillator |journal=Optics Letters |volume=11 |issue=1 |pages=18–20 |year=1986 |doi=10.1364/ol.11.000018|pmid=19730518 |bibcode = 1986OptL...11...18M }}
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