公开(公告)号：JPH0362022A

公开(公告)日：1991-03-18

申请号：JP10633790

申请日：1990-04-20

Applicant: STC PLC

Inventor： RICHIYAADO EDOWAADO ITSUPUWAAS ,  KEBIN KURISUTOFUAA BAIRON ,  ROBAATO ANSONII BEIKAA ,  NAIJIERU TEIRAA

IPC: G02F1/35 ,  H01S3/06 ,  H01S3/094 ,  H01S3/10 ,  H01S3/13 ,  H01S3/131 ,  H01S3/17 ,  H01S5/00 ,  H01S5/04 ,  H01S5/0683 ,  H01S5/50 ,  H04B10/17

Abstract: PURPOSE: To perform the gain control of optical amplifier of ASE having the center at 1.535μm by using the signal of 1.551μm so as to form the base of a gain control loop. CONSTITUTION: This device is composed of an erbium-doped fiber 1, pump laser 2, wavelength multiplexer 3 for superimposing the output of the pump laser and an input optical signal, pump/signal demulti-plexer 5 for dividing an output signal and a section B of small ASE at 1.5μm, output port 6 for optical signal, band filter 7, detection part 8, amplifier 9 and feedback loop 10. Then, the output of the feedback loop 10 is impressed to the pump laser 2, and pump output power is changed so as to maintain a fixed gain, namely, the fixed strength of natural discharge. Thus, the amplifier gain at 1.535μmA can be kept constant by feeding back a change in the strength of ASEB having the window center at 1.551μm.

公开(公告)号：JPS63200130A

公开(公告)日：1988-08-18

申请号：JP2488188

申请日：1988-02-04

Applicant: STC PLC

Inventor： KEBIN KURISUTOFUAA BAIRON ,  MAIKERU GURANTO SUKOTSUTO ,  UIRUSON SHIBETSUTO

IPC: H01S3/30 ,  G02B6/00 ,  G02B6/10 ,  G02F1/35 ,  G02F1/355 ,  H01S3/06 ,  H01S3/067 ,  H01S3/1055 ,  H01S3/16 ,  H01S3/17

公开(公告)号：JPH03171120A

公开(公告)日：1991-07-24

申请号：JP29967090

申请日：1990-11-05

Applicant: STC PLC

Inventor： KEBIN KURISUTOFUAA BAIRON

IPC: G02B6/00 ,  G02F1/35 ,  H04B10/02 ,  H04B10/18

Abstract: PURPOSE: To remove the solution type interaction by using a passive optical tube as an optical fiber so that a signal may be transmitted along it. CONSTITUTION: The optical fiber is a passive optical tube so that a signal may be transmitted along it. The solution effect requires a ratio dI/dt of the intensity change which provides self-phase modulation brought about in soliton. The intensity is fixed to remove dI/dt; ana as for the fiber, the dynamic Kerr effect doesn't exist so that certain light can be seen, and therefore, soliton type induction and repulsion are not caused. Thus, the soliton interaction in a conventional optical fiber system is removed, and the system can be used at a high bit speed with long fiber length.

公开(公告)号：JPS61140928A

公开(公告)日：1986-06-28

申请号：JP27234785

申请日：1985-12-03

Applicant: Stc Plc

Inventor： KEBIN KURISUTOFUAA BAIRON

IPC: G02B6/00 ,  G02F1/35 ,  G02F1/39 ,  H01S3/30 ,  H01S5/06

CPC classification number: G02F1/395 ,  H01S3/302

公开(公告)号：JPH0612388B2

公开(公告)日：1994-02-16

申请号：JP27234785

申请日：1985-12-03

Applicant: STC PLC

Inventor： KEBIN KURISUTOFUAA BAIRON

IPC: G02B6/00 ,  G02F1/35 ,  G02F1/39 ,  H01S3/30 ,  H01S5/06