DEVICE AND METHOD FOR SINGLE PORT MODULATOR ACCOMPANIED WITH AMPLIFICATION

    公开(公告)号:JPH1039264A

    公开(公告)日:1998-02-13

    申请号:JP9337497

    申请日:1997-04-11

    Abstract: PROBLEM TO BE SOLVED: To reduce the cost of a package and also to compensate losses of a network and a coupling by an internal amplification. SOLUTION: This single port reflection type optical modulator 10 includes a semiconductor waveguide amplifier having a reflector 18 at its end. Moreover, this modulator has one input-output port for receiving an optical signal and includes a modulation area 14 modulating the optical signal according to an electric driving signal and an amplifier area 15 amplifying the optical signal. These modulation area 14 and the simplifier area 15 include a waveguide guiding the optical signal. The reflector 18 is coupled to one end of a side opposite to the input-output port of the waveguide and this reflector returns the optical signal by reflecting it and, then, the optical signal which is amplified and modulated is outputted.

    DUAL FIBER FERRULE AND ITS FORMATION

    公开(公告)号:JPH1073742A

    公开(公告)日:1998-03-17

    申请号:JP20035097

    申请日:1997-07-25

    Abstract: PROBLEM TO BE SOLVED: To provide a ferrule suitable for housing dual optical fibers, a manufacturing method therefor and an optical connector and a package incorporating the ferrule. SOLUTION: A dual fiber ferrule 1b has a holding member 7. Along a symmetry axis of the holding member 7, a hole 5b having an elliptical shape and a size suitably for two bare optical fibers 3a, 3b is formed. The elliptical hole 5b decides the angle direction of the fiber core center of the optical fiber in the holding member 7. The dual fiber ferrule 1b can be used for forming an improved optical connector. A registering shape part 9 provided on the holding member 7 of the dual fiber ferrule 1b is used for passively aligning the optical fiber of one connector and the optical fiber of another connector in the case of forming an optical link.

    3.
    发明专利
    未知

    公开(公告)号:DE69722853T2

    公开(公告)日:2004-05-13

    申请号:DE69722853

    申请日:1997-04-30

    Abstract: A single-port, reflective, optical modulator with internal amplification. In one advantageous embodiment of the present invention, the single-port modulator includes a semiconductor waveguide amplifier with a high reflector at one end. The single-port geometry reduces the high packaging cost associated with two-port modulators, while the internal amplification compensates for splitting and coupling losses. The single-port optical modulator generally includes an input/output port for receiving a light input signal. A modulation region for modulating the light input signal in response to an electrical drive signal is included along with an amplification region for providing amplification of the light input signal. The modulation region and the amplification region include a waveguide for directing the light input signal. A high reflector coupled at one end of the waveguide opposite the input/output port is operable to reflect the light input signal back toward the input/output port, wherein an amplified and modulated light signal is output therefrom.

    4.
    发明专利
    未知

    公开(公告)号:DE69722853D1

    公开(公告)日:2003-07-24

    申请号:DE69722853

    申请日:1997-04-30

    Abstract: A single-port, reflective, optical modulator with internal amplification. In one advantageous embodiment of the present invention, the single-port modulator includes a semiconductor waveguide amplifier with a high reflector at one end. The single-port geometry reduces the high packaging cost associated with two-port modulators, while the internal amplification compensates for splitting and coupling losses. The single-port optical modulator generally includes an input/output port for receiving a light input signal. A modulation region for modulating the light input signal in response to an electrical drive signal is included along with an amplification region for providing amplification of the light input signal. The modulation region and the amplification region include a waveguide for directing the light input signal. A high reflector coupled at one end of the waveguide opposite the input/output port is operable to reflect the light input signal back toward the input/output port, wherein an amplified and modulated light signal is output therefrom.

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