What exactly is a Collimated Diode Laser? A Collimated Diode Laser (CDL) is a compact cylindrical assembly often referred to as a light pen. Each CDL includes; a laser diode and collimating lens which are assembled into a precisely machined, black anodized, aluminum housing; the laser diode drive circuit is not included. CDL's are often a viable solution in the following situations:
· Optical assembly techniques and specialized optical test instruments are not available
· Laser drive circuit is incorporated with other electronics in the product or application
· Special laser drive requirements; i.e. pulse drive or modulation
In critical applications, a CDL with an x-y lens alignment system is generally preferred. During the assembly process, the optical axis of the collimating lens is precisely aligned with the laser diode's emission point, ensuring a symmetric beam with better static alignment. The collimating lens is then adjusted in the z-axis to focus or collimate the beam.
Test data is provided with all CDL's listing specific characteristics of the laser diode, drive current required at various power levels, and the beam divergence specifications.
Many laser diodes are available from our stock and inquiries with special requirements such as custom mounts or special optical requirements are welcome.