Ultrafast semiconductor-based fiber laser sources

Vlachos, K; Bintjas, C; Pleros, N; Avramopoulos, H

dc.contributor.author	Vlachos, K	en
dc.contributor.author	Bintjas, C	en
dc.contributor.author	Pleros, N	en
dc.contributor.author	Avramopoulos, H	en
dc.date.accessioned	2014-03-01T01:21:40Z
dc.date.available	2014-03-01T01:21:40Z
dc.date.issued	2004	en
dc.identifier.issn	1077-260X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16306
dc.subject	Comb generation	en
dc.subject	Cross-gain modulation	en
dc.subject	High speed	en
dc.subject	Multiwavelength	en
dc.subject	Rational harmonic mode locking	en
dc.subject	Ring laser	en
dc.subject	Semiconductor optical amplifier (SOA)	en
dc.subject	Transform-limited pulses	en
dc.subject	Tunable source	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Optics	en
dc.subject.other	Harmonic analysis	en
dc.subject.other	Laser mode locking	en
dc.subject.other	Laser tuning	en
dc.subject.other	Oscillations	en
dc.subject.other	Ring lasers	en
dc.subject.other	Semiconductor lasers	en
dc.subject.other	Signal filtering and prediction	en
dc.subject.other	Synchronization	en
dc.subject.other	Comb generation	en
dc.subject.other	Cross-gain modulation	en
dc.subject.other	High speed	en
dc.subject.other	Multiwavelength	en
dc.subject.other	Rational harmonic mode locking	en
dc.subject.other	Semiconductor optical amplifier (SOA)	en
dc.subject.other	Transform-limited pulses	en
dc.subject.other	Tunable sources	en
dc.subject.other	Fiber lasers	en
dc.title	Ultrafast semiconductor-based fiber laser sources	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/JSTQE.2003.822941	en
heal.identifier.secondary	http://dx.doi.org/10.1109/JSTQE.2003.822941	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	In this paper, a novel ring laser platform is presented that uses a single active element, a semiconductor optical amplifier (SOA), to provide both gain and gain modulation in the optical cavity. Gain modulation is achieved by an externally introduced optical pulsed signal. This signal periodically saturates the amplifier gain and forces the ring laser to mode lock. Using this laser platform, we demonstrate picosecond pulsetrain generation at repetition rates up to 40 GHz, either in single or multiwavelength operation mode. In particular, using rational harmonic mode locking, 2.5-ps pulses were obtained up to a 40-GHz repetition rate, while output pulses and output power were constant over a 20-nm tuning range. In addition, a multiwavelength optical signal was obtained using the same laser platform with the addition of a Fabry-Pérot filter for comb generation. Multiwavelength oscillation is possible due to the broad gain spectrum of the SOA used and its inhomogeneous line broadening. To this end, 48 oscillating wavelengths were obtained at the laser output, with 50-GHz line spacing. Combining both modes of operation, it was possible to mode lock the oscillating multiwavelength signal and to obtain at the output ten wavelength channels, simultaneously mode locked at a 30-GHz repetition rate. The mode-locked channels are temporarily synchronized and exhibit almost identical spectral and time characteristics.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Journal on Selected Topics in Quantum Electronics	en
dc.identifier.doi	10.1109/JSTQE.2003.822941	en
dc.identifier.isi	ISI:000220905600020	en
dc.identifier.volume	10	en
dc.identifier.issue	1	en
dc.identifier.spage	147	en
dc.identifier.epage	154	en