TOPTICA Photonics AG - A passion for precision -

Single Frequency Lasers

Power, Coherence, Stability

TOPTICA's single-frequency diode lasers employ state-of-the-art diode technology to achieve the highest single-frequency output power of any direct diode-based system. For example, the TopMode 405 nm model offers as much as 100 mW – an industry record!

At the well-established HeNe wavelength of 633 nm, the corresponding system provides an output of 50 mW. Even Watt-class UV/RGB solutions are provided by frequency-converted diode lasers. TOPTICA's single-frequency lasers feature a narrow spectral width, translating into a long coherence length. All models exhibit an excellent stability of wavelength and output power, combined with TEM00 operation mode.

Wavelength Output Power Operation Mode Coherence Spectral Linewidth

iBeam smart WS

633, 638, 685, 785 nm

20, 30, 45, 120 mW


TEM00, single-frequency

< 25 MHz


405 and 633 nm

50 (100), 50 mW


TEM00, single-frequency

< 5 MHz

TopWave 266

266 nm

150 mW


TEM00, single-frequency

< 1 MHz


785 nm

500 mW


TEM00, single-frequency

< 10 MHz