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[edit]
References[edit]
- Spotlight: Injection Seeding, Technical University of Darmstadt
Bibliography[edit]
- Boichenko, V.L.; Zasavitskii, I.I.; Kosichkin, Yu.V.; Tarasevich, A.P.; Tunkin, V.G.; Shotov, A.P. (1984). "A picosecond optical parametric oscillator with amplification of the tunable semiconductor laser radiation". Sov. J. Quant. Electronics. 11 (1): 141–143. doi:10.1070/QE1984v014n01ABEH004663.
- Magnitskii, S.A.; Malakhova, V.I.; Tarasevich, A.P.; Tunkin, V.G.; Yakubovich, S.D. (1986). "Generation of bandwidth-limited tunable picosecond pulses by injection-locked optical parametric oscillator". Optics Letters. 11 (1): 18–20. Bibcode:1986OptL...11...18M. doi:10.1364/ol.11.000018. PMID 19730518.
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction