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  • Rumba 1064-nm Laser
Jul 2010
Cobolt ABRequest Info
SOLNA, Sweden, July 2, 2010 — Cobolt AB has released a new wavelength on the single-frequency 05-01 platform released in 2009. The Cobolt Rumba diode-pumped solid-state laser operates at 1064 ±0.6 nm with up to 2 W of continuous-wave output power and is suited to applications such as high-resolution Raman spectroscopy, interferometry and optical tweezers experiments.

The single-frequency laser delivers a TEM00 beam with M2 <1.1. A new proprietary cavity design provides a narrow spectral linewidth of <1 MHz and typical ultralow noise performance of <0.1% rms over 20 Hz to 20 MHz and over a temperature range from 10 to 40 °C.

The laser is manufactured using proprietary HTCure technology in a compact and hermetically sealed package measuring 115 × 70 × 45 mm, which provides good reliability and a high level of immunity to varying environmental conditions. Lasers built using the technology have been shown to withstand multiple 60-g mechanical shocks in operation without any sign of degraded performance. They can be exposed to extreme temperatures of >100 °C and are insensitive to pressure and humidity.

Full angle beam divergence is <1.6 mrad, beam diameter at aperture is 1 mm, long-term stability over 8 h is <2%, typical beam pointing stability is 5 µrad/°C, vertical polarization ratio is >100:1, and total system power consumption is typically <30 W.

The laser is supplied with a compact CDRH or OEM controller that can be remotely accessed for operation and monitoring of the laser system over digital RS-232 or analog interfaces.


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A physical variable that is proportionally similar to another variable over a specified range. An analog recording contains data that is similar to the source.
Denoting the use of binary notation; i.e., the representation of data by bits (1 or 0).
The study and utilization of interference phenomena, based on the wave properties of light.
Raman spectroscopy
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change.  
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