文档介绍：LEOT Laser Tutorial - Course 4: Laser Electronics - Module 6: Diode Laser Power Supplies
This version reflects ments of the core participants as reviewed and
incorporated in accordance with CORD's FIPSE-supported Curriculum
Morphing Project.
MODULE 4-6
DIODE LASER POWER
SUPPLIES
ments of John Simcik
(1) A laser diode, or semiconductor laser, operates similarly to an
ordinary forward-biased diode. They are very reliable devices that may
have long lifetimes if treated properly. The power source for a laser
diode is a simple constant-current supply. Standard laboratory DC
supplies are not stable enough. A laser diode supply typically will
consist of a slow starter circuit, current regulation, transient
suppression, and automatic optical power control.
When plete this unit, you will be able to:
1. Using terms similar to those in the text, describe various types of
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LEOT Laser Tutorial - Course 4: Laser Electronics - Module 6: Diode Laser Power Supplies
laser diode structures and their relationships. When applicable, explain
advantages and disadvantages of each structure.
2. Draw a typical curve that shows output power versus forward
current. Label the threshold current, operating-current region,
saturation point, and catastrophic damage point.
3. Explain the effects of static electricity on laser diodes and describe
procedures for establishing a static-free work environment.
4. Identify sources of electrical transients during operation of a laser
diode.
5. Describe methods for transient suppression in laser diode power
supplies.
6. Draw a block diagram of a simple laser diode power supply, for both
continuous operation and pulsed operation. Explain the function of the
ponents.
7. Explain appropriate mounting and cooling techniques for continuous
and pulsed laser diode operation. Dra