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Pub. No.:    WO/2010/143763    International Application No.:    PCT/KR2009/003184
Publication Date: 16.12.2010 International Filing Date: 15.06.2009
H01S 3/10 (2006.01)
Applicants: MEL [KR/KR]; KT Satellite Center 1F 139-9 Gajeong-dong Yuseong-gu Daejeon 305-350 (KR) (For All Designated States Except US).
KIM, Byoung Whi [KR/KR]; (KR) (For US Only).
PARK, Mahn Yong [KR/KR]; (KR) (For US Only).
JEONG, Geon [KR/KR]; (KR) (For US Only)
Inventors: KIM, Byoung Whi; (KR).
PARK, Mahn Yong; (KR).
JEONG, Geon; (KR)
Agent: KWON, Oh-Sig; 4F Jooeunleaderstel 921, Dunsan-dong Seo-gu Daejeon 302-120 (KR)
Priority Data:
10-2009-0052515 12.06.2009 KR
(KO) 외부공진형 파장가변 레이저 모듈
Abstract: front page image
(EN)The present invention relates to an external cavity tunable laser module by the thermo-optic effect of a semiconductor optical waveguide. The tunable laser module according to the present invention comprises: a light source which generates the broadband light; a semiconductor optical waveguide of which one end is optically coupled with the light source; a Bragg grating which is formed on the optical waveguide; a thin film heater which is positioned in the upper part of the Bragg grating, and adjusts the reflection band of the Bragg grating by the thermo-optic effect; a first temperature sensor which is positioned in the upper part of the optical waveguide; a thermo-electric cooler (TEC) which is disposed in the lower part of the optical waveguide; a thermal insulating layer which is equipped between the optical waveguide and the TEC; and an optical fiber which is optically coupled with the other end of the optical waveguide.
(FR)La présente invention concerne un module laser réglable pour cavité externe qui utilise l'effet thermo-optique d'un guide d'ondes optique semi-conducteur. Ledit module laser réglable de la présente invention comprend : une source lumineuse qui produit la lumière à large bande ; un guide d'ondes optique semi-conducteur dont une extrémité est optiquement couplée à la source lumineuse ; un réseau de Bragg qui est formé sur le guide d'ondes optique ; un élément thermique de film mince qui est positionné dans la partie supérieure du réseau de Bragg et effectue le réglage de la bande de réflexion du réseau de Bragg par l'effet thermo-optique ; un premier capteur thermique qui est positionné dans la partie supérieure du guide d'ondes optique ; un refroidisseur thermo-électrique (TEC) qui est disposé dans la partie inférieure du guide d'ondes optique ; une couche d'isolation thermique qui est prévue entre le guide d'ondes et le TEC ; et une fibre optique qui est optiquement couplée à l'autre extrémité du guide d'ondes optique.
(KO)본 발명은 반도체 광도파로의 열광학효과에 의한 외부공진형 파장가변 레이저 모듈에 관한 것으로, 상세하게 본 발명에 따른 파장가변 레이저 모듈은 광대역 광을 발생하는 광원; 일 단이 상기 광원과 광결합된 반도체 광도파로; 상기 광도파로 상에 형성된 브래그 격자(Bragg grating); 상기 브래그 격자 상부에 구비되며 열광학 효과에 의해 상기 브래그 격자의 반사 대역을 조절하는 박막 히터; 상기 광도파로 상부에 구비된 제1 온도센서; 상기 광도파로 하부에 구비된 열전냉각기(TEC; Thermo-Electric Cooler); 상기 광도파로와 상기 열전냉각기 사이에 구비된 단열층; 및 상기 광도파로의 다른 일 단과 광결합된 광섬유;를 포함하여 구성된 특징이 있다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)