Check the listing for details. Coherent 0222-199-00 Laser Diode. Condition: Used. Listed at 155.00 USD. Used coherent 0222-199-00 Laser Diode. Tested & working, sold as is. VMB2.3-4L, 4 mW, 635 nmMiniature diode laser modules provide the smallest package size and best value. Included inside every module are complete electronics to manage the constant power laser drive with a closed-light loop based on an internal photodiode. Also included in the electronics are protection circuits to provide a robust system in even the smallest of packages.Miniature diode laser modules use the patented AlignLock technology to guarantee beam-pointing alignment of less than 4.3 mrad. This allows for simpler and easier integration, as you can trust the unit-to-unit consistency of each beam.Buy VLM miniature diode laser modules for you applications requiring a compact high-quality laser beam.