0. 04 Hz relative optical-frequency stability in a 1. 5. mu. m distributed-Bragg-reflector (DBR) laser

Journal Article · Thu Nov 30 23:00:00 EST 1989 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/68.46047· OSTI ID:7001823

Ishida, O; Toba, H ^[1]; Tohmori, Y ^[2]

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1. NTT Transmission Systems Labs, 1-233356 Take Yokosuka-shi, Kanagawa 238-03 (JP)
2. NTT Opto-Electronics Labs, 3-1 Morinosato Wakamiya, Atsugi-shi, Kanagawa 243-01 (JP)

The optical frequency of a 1.5 {mu}m distributed-Bragg-reflector (DBR) laser is stabilized against that of a master laser by heterodyne-type frequency locking with a phase-locked loop (PLL). Despite its wide linewidth of 16 MHz, stable PLL operation with an optical hold-in range of 26 GHz is realized, and residual frequency fluctuations are reduced to 0.04 Hz at an averaging time of 500 s. The combination of DBR laser and PLL is, therefore, suitable for future frequency-controlled light sources. The offset error from the settled frequency caused by the band-limited beat spectrum is also discussed.

• OSTI ID: 7001823
• Journal Information: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA) Vol. 1:12; ISSN IPTLE; ISSN 1041-1135
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
BRAGG REFLECTION
CONTROL
FREQUENCY SELECTION
LASERS
LIGHT SOURCES
MODE CONTROL
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATION SOURCES
REFLECTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS