Integrated optic frequency shifters for space heterodyne interferometry

Autor:	Daniel J. Fritz, Roman C. Gutierrez, Serge Dubovitsky, Karl M. Kissa
Rok vydání:	1998
Předmět:	Physics Heterodyne Optical fiber business.industry Astrophysics::Instrumentation and Methods for Astrophysics Physics::Optics Acousto-optics Laser law.invention Starlight Metrology Interferometry Optics law Astronomical interferometer Optoelectronics business
Zdroj:	Astronomical Interferometry.
ISSN:	0277-786X
DOI:	10.1117/12.317167
Popis:	Heterodyne interferometer laser gauges are used in space- based astronomical interferometers to very accurately measure and compensate for variations in starlight pathlength. Bragg cells have been traditionally used to generate the heterodyne signal by shifting the frequency of the laser light. This paper presents the development and qualification of an integrated optic frequency shifter (IOFS) which offers improved performance and reliability compared with Bragg cell technology. The most critical advantage of the IOFS for space applications is that it enables fiber optic metrology source integration, which facilitates the integration process and result in more reliable and compact heterodyne interferometer laser gauges.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::940017ddf4abfc60b9f290dc2e2fdbb6 https://doi.org/10.1117/12.317167 Zobrazit plný text záznamu