ATMF102_1 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Mode-Hop-Free Diode Laser Module

Analog Technologies
Mode-Hop-Free Diode Laser Module
ATMF102
MAIN FEATURES
• Mode-hop-free
• Single longitudinal mode
• Long coherent length: >15 meters
• Circular beam available
• High wavelength stability
• Extremely low noise
• Small size and low cost
• CDRH compliant: key switch and emission
indicator
MAIN APPLICATIONS
• Holography
• Interferometry
• Metrology
• Spectroscopy
• Laser gauging
INTRODUCTION
Our laser module, ATMF102, generates a collimated laser
beam of single mode, long coherent length, mode-hop-free,
good beam shape, and low noise. Among all the lasers
available in the market, our laser offers the lowest noise and
longest coherent length.
The outstanding specifications are achieved by using
sophisticated and high performance electronics, plus well
designed optics and mechanics. Both the laser current and
the temperature are under tight control.
Unlike some other laser modules, we do not use any fan,
nor other vibration parts in our lasers, making it quiet and
vibration free.
It comes with a key switch and emission indications. In
addition, there is also an indicator for temperature locking
status.
It comes with a compact AC/DC adapter type power
supply, which takes any AC main voltage: 85VAC to
245VAC.
LASER BEAM OPTIONS
The output beam have these options: bare, elliptic and
circular beams.
The ATMF102 is composed of 4 detachable components:
laser body, collimation lens, lens holder, and circularizer.
A. Bare Beam
When needing a bare laser beam, use only the laser body,
see Figure 1. Although, the lens holder and collimation lens
always come with the laser, they can be detached easily
from the laser body.
B. Collimated Laser Beam
When needing a collimated laser beam, use the laser body,
the lens holder, and the collimation lens which can be
turned for adjusting the focus, see Figure 2A. Under this
configuration, an elliptic laser beam is obtained by using a
regular laser diode.
C. Collimated Circular Laser Beam By Using Special
Laser Diode
It is an option to obtain a circular laser beam by using
special laser diode which has a lens inside the laser diode
body, see Figure 2B. The special laser diodes generating the
circular beam have fewer choices than the regular laser
diodes. Therefore, some wavelengths and/or powers are not
available.
D. Collimated Circular Laser Beam By Using
Anamorphic Prism Pair
Another way to generate the circular beam is by using an
pair of anamorphic prism. We use this pair to form a beam
circularizer and, according to the specific laser diode, we
tune the positions and the angles of these prisms so that the
output beam will become circular at far field. Therefore,
this becomes another option for generating the collimated
and circularized beam, to use all the 4 components: the
laser body, the lens holder, the collimation lens and the
circularizer, see Figure 3.
The main advantages of this approach are: unchanged phase
wave-front plane, better controlled laser beam profile, and
more options in selecting the laser diodes to be used in the
laser module.
550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089, U. S. A. Tel.: [phone], Fax: [phone], www.analogtechnologies.com
© Copyright 1999 – 2006, Analog Technologies, Inc. All Rights Reserved. Updated: 12/29/05
1