Lasers
| Single Mode | Comet™ DPSS Laser
The Comet™ can be operated over a wide temperature range, 10°C to 35°C, with a stable and quiet laser output power at 532 nm. The Comet™ has a proven history of RMS noise stability < 0.5%. The combination of excellent beam characteristics, such as mode quality and low divergence and brightness, makes the Comet™ laser series suitable for beam focusing as well as long distance beam positioning.
The Comet™ includes an external laser driver, thermoelectric cooling, and optical fiber-coupling with an expected lifetime > 10,000 hours. The Comet™ has a proven history of reliability up to a 3% peak-to-peak long term power stability rating.
Unlike most of the competition’s DPSS lasers (which can not be modulated directly), the Comet™ laser series is specifically designed to allow modulation by both TTL and analog signals.
Using the TTL modulation option, the laser can be digitally pulsed in on/off mode up to 20 kHz with a modulation depth greater than 100:1. With a rise/fall time of < 20 μs, the TTL signal can be used in conjunction with the trigger signal of your detection system to control your measurement cycle and integration time. TTL modulation is ideal for Raman spectroscopy, fluorescence spectroscopy, and other applications where the source and the detector need to be precisely triggered.
With analog modulation (AM), the laser output power is controlled by applying an arbitrary 0 - 5 V input signal from a function generator. Using the AM option, the laser can be modulated up to 1 kHz with a modulation depth > 100:1.
Depending on your specific system’s requirements for TTL and analog modulation, custom configurations to the laser might be needed. Please contact a B&W Tek Applications Specialist for help with your specific requirements.
The Comet™ laser series provides a single-mode (TEM00) spatial beam profile, with a typical M2 of 1.05. Such a high quality spatial mode profile is inherent to DPSS laser systems (but not to diode lasers); therefore, there is no need for spatial mode filtering, as in our other laser systems.
The Comet™ laser series can be equipped with an optional USB connection and our easy to use LazUSB™ software interface for laser power control and real time monitoring of internal laser conditions.
Since the OEM control box (≤ 100 mW) does not come with an external power supply, it requires a 5 V input at 3 A. For OEM applications requiring more than 100 mW please contact a B&W Tek application Specialist with your specific requirements.
Using the TTL modulation option, the laser can be digitally pulsed in on/off mode up to 20 kHz with a modulation depth greater than 100:1. With a rise/fall time of less than 4 μs, the TTL signal can be used in conjunction with the trigger signal of your detection system to control your measurement cycle and integration time. TTL modulation is ideal for Raman spectroscopy, fluorescence spectroscopy, and other applications where the source and the detector need to be precisely triggered.
With analog modulation (AM), the laser output power is controlled by applying an arbitrary 0 - 5 V input signal from a function generator. Using the AM option, the laser can be modulated up to 1 kHz with a modulation depth grater than 100:1.
Mock FDA Quality Systems Inspection Technique (QSIT)
Extensive Quality Control Check Points including Installation Qualifications (IQs), Operational Qualifications (OQs), Performance Qualifications (PQs), and Product Qualifications, as well as software verifications and validations
ISO-9001 and ISO-13485 certified
FDA/CDRH registration and compliance
CE Mark and UL Mark
Application of Six Sigma methodologies
Downloads
Datasheet
User Manual
Compact and self-contained, the Comet™ emits a pure TEM00 beam with diffraction limited performance and a (typical) M2 of 1.05. Available in blue (475 nm), green (532 nm), yellow (594 nm), and NIR (1064 nm). With variable power options, these modules are ideal for demanding applications such as metrology, photoluminescence, printing, illumination, scanning, inspection, particle counting, and a variety of bio-medical applications. These turnkey lasers maintain outstanding optical performance over a broad temperature range, guaranteeing minimal power fluctuations and virtually eliminating high frequency noise. Its OEM version utilizes the world’s smallest OEM controller with power consumption < 20 Watts. It has been qualified for use in some of the most demanding high-end instruments, with deployments in the tens of thousands of units. The 475 nm systems replace bulky, expensive gas ion lasers for bio-medical and fluorescence applications, without sacrificing beam quality.
