Infrared and Laser Engineering, Volume. 46, Issue 2, 205001(2017)
Burst-mode laser diode driver with dual-loop power control
A burst-mode laser diode driver(LDD) with dual-loop power control circuit was designed for the passive optical network(PON) applications. The charge compensation and dynamic bias circuit was employed to reduce the rising and falling time of the output current and enlarge the output current capability. A dual-loop power control feedback circuit was proposed to avoid the variations of average power and the extinction ratio with temperature. The proposed laser diode driver was implemented in a 0.18 ?滋m RF CMOS technology and the chip area was 1 600 ?滋m×800 ?滋m. Experiment results show that the output bias current and the modulating current can reach 90 mA. The burst-on time of the LDD is less than 2 ns and the burst-off time is less than 1 ns with 2.5 Gbit/s data transmitting rate and 41 ps magnitude. The average power stability and the extinction ratio stability of the LDD is ±0.26 dB and ±1 dB, respectively. The proposed LDD meets the needs of the optical power and stability of the laser for PONs.
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Zhu Tiezhu, Mo Taishan, Ye Tianchun. Burst-mode laser diode driver with dual-loop power control[J]. Infrared and Laser Engineering, 2017, 46(2): 205001
Category: 激光器技术
Received: Jun. 5, 2016
Accepted: Jul. 10, 2016
Published Online: Mar. 31, 2017
The Author Email: Tiezhu Zhu (jinmulu@163.com)