The Design of High Precision Temperature Control Circuit for DFB Laser Diode

Xiao Feng Li; Jie Ma; Hai Feng Liu; Shou Gang Zhang

doi:10.4028/www.scientific.net/AMR.476-478.286

Paper Titles

The Effect of Trace Boron on Corrosion Resistance of the Casted 0.04C-16Cr Ferritic Stainless Steels in H₂SO₄ Medium
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Rust Layer Structure Analysis of Q235 Atmospheric Corraded in Tangshan Industrial Estate
p.269

Research on Reduction Dearsenication in Molten Iron (Steel)
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Solubility Product of MoC with NaCl Type Cubic Crystal Structure in Iron
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The Design of High Precision Temperature Control Circuit for DFB Laser Diode
p.286

Optimization of Weir & Dam with Drain Holes in Continuous Casting Slab Tundish
p.293

Basic Research on Reduction Characteristics of Niobium Compounds in CaO-SiO₂-Al₂O₃ Slag
p.302

Study on Polycyclic Aromatic Hydrocarbons Distribution during Single Coal Coking
p.307

The Assessment of Work Hardening Behaviour of Dual Phase Steels with Coarse Martensite Islands
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 476-478The Design of High Precision Temperature Control...

The Design of High Precision Temperature Control Circuit for DFB Laser Diode

Abstract:

A circuit using the singlechip as key component for temperature control for DFB laser diode is designed in this article. An imbalance electrical bridge for measuring the temperature of laser diode is used in this circuit, and the result of measurement is converted to digital quantity by ADC. After that, the error signal is gotten through the digital PID calculation. At last, the DAC chip make error signal be voltage to drive power amplifier for TEC. The function of set point and display of real time temperature is also added. After the test for a long time, we confirm the precision of temperature is better than ±0.001°C.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

286-292

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.286

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Online since:

February 2012

Authors:

Xiao Feng Li, Jie Ma, Hai Feng Liu, Shou Gang Zhang

Keywords:

DFB, Laser Diode, PID Calculation, Single Chip, Temperature Control

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