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1. (WO2014181869) OPTICAL MODULATOR DRIVER CIRCUIT AND OPTICAL TRANSMITTER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/181869    International Application No.:    PCT/JP2014/062480
Publication Date: 13.11.2014 International Filing Date: 09.05.2014
IPC:
H04B 10/516 (2013.01), H03F 1/00 (2006.01), H03F 3/45 (2006.01), H03F 3/60 (2006.01), H03G 3/18 (2006.01)
Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION [JP/JP]; 5-1,Otemachi 1-chome,Chiyoda-ku, Tokyo 1008116 (JP)
Inventors: NAGATANI, Munehiko; (JP).
NOSAKA, Hideyuki; (JP).
ITOH, Toshihiro; (JP).
MURATA, Koichi; (JP).
FUKUYAMA, Hiroyuki; (JP).
SAIDA, Takashi; (JP).
KAMEI, Shin; (JP).
YAMAZAKI, Hiroshi; (JP).
KIKUCHI, Nobuhiro; (JP).
KOIZUMI, Hiroshi; (JP).
NOGAWA, Masafumi; (JP).
KATSURAI, Hiroaki; (JP).
UZAWA, Hiroyuki; (JP).
KATAOKA, Tomoyoshi; (JP).
FUJIWARA, Naoki; (JP).
KAWAKAMI, Hiroto; (JP).
HORIKOSHI, Kengo; (JP).
BOUVIER, Yves; (JP).
YONEYAMA, Mikio; (JP).
AISAWA, Shigeki; (JP).
SUZUKI, Masahiro; (JP)
Agent: YAMAKAWA,Masaki; c/o Yamakawa International Patent Office, 4th Floor,Sanno Park Tower,11-1,Nagatacho 2-chome,Chiyoda-ku, Tokyo 1006104 (JP)
Priority Data:
2013-099025 09.05.2013 JP
2013-100929 13.05.2013 JP
Title (EN) OPTICAL MODULATOR DRIVER CIRCUIT AND OPTICAL TRANSMITTER
(FR) CIRCUIT D'ATTAQUE DE MODULATEUR OPTIQUE ET ÉMETTEUR OPTIQUE
(JA) 光変調器ドライバ回路および光送信器
Abstract: front page image
(EN)An optical modulator driver circuit (1) is provided with an amplifier (50, Q10, Q11, R10-R13), and a current amount adjustment circuit (51) capable of adjusting the amount of current in the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) comprises two or more current sources (IS10) capable of being individually turned on or off according to a binary control signal indicating the desired operation mode.
(FR)La présente invention concerne un circuit d'attaque (1) de modulateur optique qui comprend un amplificateur (50, Q10, Q11, R10-R13), et un circuit de réglage (51) de la quantité de courant capable d'ajuster la quantité de courant dans l'amplificateur (50) conformément à un mode de fonctionnement voulu. Le circuit de réglage (51) de la quantité de courant comprend deux ou plusieurs sources de courant (IS10) pouvant être individuellement mises sous tension ou hors tension en fonction d'un signal de commande binaire indiquant le mode de fonctionnement voulu.
(JA) 光変調器ドライバ回路(1)は、増幅器(50,Q10,Q11,R10~R13)と、所望の動作モードに応じて増幅器(50)の電流量を調整可能な電流量調整回路(51)とを備える。電流量調整回路(51)は、所望の動作モードを示す2値の制御信号に応じて個別にON/OFF可能な2個以上の電流源(IS10)からなる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)