Electroabsorption modulator integrated distributed feedback laser transmitter
    2.
    发明公开
    Electroabsorption modulator integrated distributed feedback laser transmitter 有权
    电吸收调制器集成分布反馈激光发射机

    公开(公告)号:EP1184949A3

    公开(公告)日:2002-09-11

    申请号:EP01306728.5

    申请日:2001-08-07

    IPC分类号: H01S5/026 H04B10/155

    摘要: An optical transmitter for digitally modulated RF sub-carriers comprising an electroabsorption modulator integrated distributed feedback laser (412) for transmitting the digitally modulated RF sub-carriers (406) in the sub-octave frequency range. The negative bias is optimized for maximum carrier signal to noise ratio (CNR) which occurs when the composite triple beat (CTB) non-linear distortion is minimum that allows higher modulation index without causing any in-band distortion. A higher CNR increases the receiver sensitivity and thus more users can be served from a single transmitter or the transmitting signal can be modulated with higher order of digital modulation.

    摘要翻译: 一种用于数字调制的RF子载波的光学发射器,包括集成了分布式反馈激光器(412)的电吸收调制器,用于发送亚倍频程频率范围内的数字调制的RF子载波(406)。 当复合三重拍(CTB)非线性失真最小时允许最大载波信噪比(CNR)优化负偏置,允许更高的调制指数而不引起任何带内失真。 较高的CNR增加了接收器灵敏度,因此可以从单个发射器提供更多的用户,或者可以用更高阶的数字调制来调制发射信号。

    Electroabsorption modulator integrated distributed feedback laser transmitter
    3.
    发明公开
    Electroabsorption modulator integrated distributed feedback laser transmitter 有权
    Lasertransmitter mit verteilterRückkopplungund integriertem Elektroabsorptionsmodulator

    公开(公告)号:EP1184949A2

    公开(公告)日:2002-03-06

    申请号:EP01306728.5

    申请日:2001-08-07

    IPC分类号: H01S5/026 H04B10/155

    摘要: An optical transmitter for digitally modulated RF sub-carriers comprising an electroabsorption modulator integrated distributed feedback laser (412) for transmitting the digitally modulated RF sub-carriers (406) in the sub-octave frequency range. The negative bias is optimized for maximum carrier signal to noise ratio (CNR) which occurs when the composite triple beat (CTB) non-linear distortion is minimum that allows higher modulation index without causing any in-band distortion. A higher CNR increases the receiver sensitivity and thus more users can be served from a single transmitter or the transmitting signal can be modulated with higher order of digital modulation.

    摘要翻译: 一种用于数字调制的RF子载波的光发射机,包括用于在子倍频程频率范围内发射数字调制的RF子载波(406)的电吸收调制器集成分布反馈激光器(412)。 针对最大载波信噪比(CNR)优化负偏压,当复合三节拍(CTB)非线性失真最小时,其允许更高的调制指数而不引起任何带内失真。 较高的CNR增加了接收机灵敏度,从而可以从单个发射机提供更多的用户,或者可以用更高阶的数字调制来调制发射信号。