A Burst-Mode Laser Transmitter with Fast Digital Power Control for a 155 Mb/s Upstream PON (<Joint Special Issue> Recent Progress in Optoelectronics and Communications)

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概要

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• This paper presents an innovative 155 Mb/s burst-mode laser transmitter chip, which was designed and successfully demonstrated, and contains several new subsystems: a digitally programmed current source, programmable up to 120 mA with a resolution of 0.1 mA, a fast, but accurate intermittent optical level monitoring circuit, and a digital Automatic Power Control (APC) algorithm. This generic and intelligent chip was developed in a standard digital 0.35μm CMOS process. Extensive testing showed a high yield and algorithm stability, as well as excellent performance. During initialization, when the transmitter is connected to the Passive Optical Network (PON) for the first time, maximum three Laser Control Fields (LCF) are needed, with a length of 17 bytes (0.88 microsecond at 155 Mb/s), to stabilize the laser output power. In this short time, the chip can regulate the launched optical output power of any FSAN (Full Service Access Network) compliant, laser diode to the required level, even in the extreme circumstances caused by outdoor operation or by battery backup operation during power outages. Other tests show that the chip can further stabilize and track this launched optical power with a tolerance lower than 1 dB over a wide temperature range, during the burst mode data transmission. The APC algorithm intermittently adjusts the optical power to be transmitted in a digital way, starting from loosely specified but safe preset values, to the required stable logic "1" and "0" level. No laborious calibration of the laser characteristic curve and storage of the calibration values in lookup tables are needed, nor any off-chip adjustable component. The power consumption is significantly reduced by disabling inactive circuitry and by gating the digital high-speed clock. Although this laser transmitter was developed for FSAN PON applications, which are standardized at a speed of 155 Mb/s upstream, the design concept is quite generic and can be applied for developing a wide range of burst mode laser transmitters, such as required for Gigabit PON systems or other TDMA networks.

• 社団法人電子情報通信学会の論文
• 2003-05-01

著者

• Martens Yves

  Imec

• BAUWELINCK Johan

  Ghent University, INTEC

• VANDEWEGE Jan

  Ghent University, INTEC

• QIU Xing-Zhi

  Ghent University

• OSSIEUR Peter

  Ghent University

• GILON Edith

  Alcatel Research & Innovation

• STUBBE Brecht

  Alcatel Research & Innovation

• MARTENS Yves

  Ghent University, INTEC-IMEC

• Vandewege Jan

  Ghent University

• Stubbe Brecht

  Alcatel Research & Innovation

• Gilon Edith

  Alcatel Research & Innovation

• Bauwelinck Johan

  Ghent University

• Martens Yves

  Ghent University Intec/imec

関連論文

• Fast Consecutive Zero and One bits Detection Circuits for a 1.25 Gbit/s Burst Mode Laser Driver(Communication Devices/Circuits)
• A Burst-Mode Laser Transmitter with Fast Digital Power Control for a 155 Mb/s Upstream PON(The IEICE Transactions on Communications, Vol.E86-B, No.5)
• A Burst-Mode Laser Transmitter with Fast Digital Power Control for a 155 Mb/s Upstream PON ( Recent Progress in Optoelectronics and Communications)
• Design of Automotive VCSEL Transmitter with On-Chip Feedforward Optical Power Control
• An Improved Current-Mode Squarer/Divider Circuit for Automotive Applications
• A Current-Steering DAC Architecture with Novel Switching Scheme for GPON Burst-Mode Laser Drivers(Electronic Circuits)
• Current Mode Circuits for Fast and Accurate Optical Level Monitoring with Wide Dynamic Range(Devices/Circuits for Communications)
• A Low-Power Reduced Kick-Back Comparator with Improved Calibration for High-Speed Flash ADCs
• A New Common-Mode Stabilization Method for a CMOS Cascode Class-E Power Amplifier with Driver Stage

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