title: Single-frequency output from a broadband-tunable external fiber-cavity laser.
abstract: Single-frequency operation is demonstrated by using a semiconductor laser coupled to a tunable fiber-optic reflective filter. This external fiber-cavity laser is stepwise tunable over a 66-nm range centered around 1300 nm. Short-term laser linewidths are measured to be less than 50 kHz.
authors.forename: W V
authors.initials: WV
authors.lastname: Sorin
authors.forename: S A
authors.initials: SA
authors.lastname: Newton