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Resources / Application Notes / Lasers / Coherent® Laser Selection Guide
Coherent® Laser Selection Guide
Edmund Optics Inc.

Coherent® Laser Selection Guide

Depending on the application’s performance and cost requirements, each Coherent® laser family provides a different set of advantages. The table below is a price and performance comparison of Coherent OBIS™, BioRay™, and StingRay™ lasers.

Coherent® High Performance OBIS™ Laser Systems are compact, plug-and-play lasers that offer a wide range of wavelengths from the ultraviolet to the near-infrared in a single platform. Coherent® BioRay™ Lasers are cost-effective, diode laser solutions for bioinstrumentation applications including DNA research, new drug development, or fluid evaluation. Coherent® High Performance StingRay™ Laser Diode Modules are ideal for a variety of alignment or machine vision applications.

Laser FamilyOBIS™BioRay™StingRay™
  Coherent® High Performance OBIS™ Laser Systems Coherent® BioRay™ Lasers Coherent® High Performance StingRay™ Laser Diode Modules
Spatial Mode TEM00 TEM00 TEM00
M2 1.1 1.3 <1.5 <1.5
Beam Diameter 0.7 ± 0.25mm ~2.7 x 1.0mm ~2.7 x 1.0mm
Pointing Stability <5μRad/°C <10μRad/°C <10μRad/°C
RMS Noise      
20 Hz to 20MHz <0.05% - <0.25% <0.5% <0.5%
20 Hz to 20kHz, Peak to Peak <0.5% - <1% <2% <2%
Long Term Power Stability (8 hours ±3°C) <2% <2% <2%
Price
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Variety of DPSS, diode, gas, or semiconductor lasers, as well as laser accessories for measuring, positioning, bar code scanning, life sciences, or machine vision applications.

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