TUNABLE WAVELENGTH MIRROR AND TUNABLE LASER

PROBLEM TO BE SOLVED: To provide a tunable wavelength mirror that selectively and randomly obtains a desired wavelength of light from an incident radiation in a wide wavelength band and a tunable laser that can be used for WDM communication. SOLUTION: Voltage is applied to a liquid layer 9 between h...

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Bibliographische Detailangaben
Hauptverfasser:	SHIMIZU RYUICHIRO, HASHIMOTO SHIGETO, OI YOSHIHARU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a tunable wavelength mirror that selectively and randomly obtains a desired wavelength of light from an incident radiation in a wide wavelength band and a tunable laser that can be used for WDM communication. SOLUTION: Voltage is applied to a liquid layer 9 between high reflectance mirrors 5 and 6 via a set of transference electrodes 3 and 4 to control a refractive index. In addition, a liquid etalon 20 passing light with a particular wavelength and a third high reflectance mirror 10 are provided, the reflecting surface of the third high reflectance mirror 10 is slanted for each reflecting surface of a pair of high reflectance mirrors 5 and 6 and at least one of the three mirrors 5, 6 and 10 has a higher refractive index in a particular wavelength band among incident radiation wavelength bands. COPYRIGHT: (C)2006,JPO&NCIPI