Single frequency lasers

Single frequency lasers by Cobolt

We pride ourselves in providing the broadest range of compact and extremely stable single frequency lasers. The Cobolt single-frequency (SF) lasers are by default also single-longitudinal mode (SLM) lasers and are diode-pumped solid-state (DPSS) lasers, or as Cobolt have embraced: Diode-Pumped Lasers (DPL), all with intra-cavity nonlinear frequency conversion. 

The laser cavities include frequency-selective optics which stabilize the resonator and prevent all but one longitudinal and transversal mode of the laser to be amplified in the oscillator. By combining advanced cavity designs; standing-wave as well as ring-cavities, with a thermo-mechanically stable platform, active temperature control of the complete cavity and robust fixation of miniaturized high precision optics, the Cobolt CW DPSS lasers provide very stable single-frequency or single-longitudinal mode operation over the whole laser lifetime and over a wide range of operating conditions.

Advantages of single frequency operation

The single frequency and single transversal mode operation of the lasers results in extremely narrow laser linewidths (< MHz), low intensity noise of down to <0.1% RMS and a perfect diffraction limited TEM00 beam. Built with HTCure Technology into hermetically sealed packages the lasers deliver stable reliable performance over long lifetimes and in demanding ambient conditions. They are suitable not only for advanced laboratory research but also for integration into analytical instrumentation for applications such as Raman spectroscopy, bioimaging, interferometry, holography and quantum technology research.

Cobolt offer single frequency or SLM laser performance in the 04-01, 05-01 and 08-01 Series.


Cobolt 04-01 Series

Single frequency, CW diode pumped lasers

Wavelength: 457 nm – 1064 nm
Power: 25 mW – 400 mW
Applications: Raman, microscopy, LDV, DLS


Cobolt 05-01 Series

High power, single frequency, CW diode pumped lasers

Wavelength: 320 nm – 1064 nm
Power: 10 mW – 3000 mW
Applications: Holography, Raman, microscopy, flow cytometry, research


Cobolt 08-01 Series

Compact narrow linewidth lasers

Wavelength: 405 nm – 1064 nm
Power: 25 mW – 500 mW
Applications: Raman spectroscopy, interferometry, dynamic light scattering.