OPTICAL TRANSMITTING APPARATUS AND TEMPERATURE CONTROLLING METHOD USED THEREFOR

OPTICAL TRANSMITTING APPARATUS AND TEMPERATURE CONTROLLING METHOD USED THEREFOR

An optical transmitting apparatus includes an optical transmitting apparatus comprising a semiconductor laser; an optical filter which passes through the light which is output from the semiconductor laser; a first port that monitors light which is transmitted through the optical filter; a second por...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: YOKOYAMA, YOSHITAKA
Format: Patent
Sprache:eng ; fre
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
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
TRANSMISSION
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Beschreibung
Zusammenfassung:An optical transmitting apparatus includes an optical transmitting apparatus comprising a semiconductor laser; an optical filter which passes through the light which is output from the semiconductor laser; a first port that monitors light which is transmitted through the optical filter; a second port that monitors light which is not transmitted through the optical filter; an optical waveguide which includes the optical filter and the ports; an optical waveguide substrate on which the optical waveguide is formed; a temperature controlling element which adjusts the temperature of the optical waveguide substrate; a heater which adjusts the temperature of the semiconductor laser or the optical waveguide which forms the optical filter; wherein the semiconductor laser is formed on the optical waveguide substrate, and the temperature controlling element and the heater adjust the temperature independently.