Femtosecond laser selection guide

Thorlabs offers a wide range of femtosecond lasers ranging from visible to near-infrared, making them ideal for applications such as multiphoton microscopy imaging, cell manipulation, micromaterial processing, and terahertz generation.
Here we introduce the Orange series of erbium-doped fiber lasers from Germany's Menlo Systems, the T-Light series and the C/M-Fiber series. Menlo Systems is our strategic partner and was founded by Professor Theodor W. Hänsch, a 200-year Nobel Laureate in Physics. Menlo Systems is committed to the development of high performance, easy to operate femtosecond lasers. They feature a key switch operation, self-starting laser configuration, maintenance-free, and low cost, providing a high performance level and high reliability solution for scientific and industrial applications.

Figure 1 Orange series femtosecond laser
There are three types of Orange series doped femtosecond laser oscillators, ORANGE, ORANGE-A and ORANGE-A-515, which have a repetition rate of 100 ± 1 MHz and are very compact. The ORANGE model femtosecond laser has a spectrum of 1030-1050 nm, an average output power of more than 40 mW, a pulse width of less than 100 femtoseconds, and an optical fiber output coupling interface. The ORANGE-A femtosecond laser has a spectrum of 1050-1070 nm and has an average output power of more than 1 watt after amplification. The 1030 nm laser output from the erbium-doped fiber oscillator is up-converted by a frequency-doubled crystal to obtain an ORANGE-A-515 femtosecond laser with a wavelength of visible light in the visible range, with an average output power greater than 250 mW.
Figure 2 T-Light series femtosecond laser
Similar to the Orange series, the T-Light series femtosecond fiber lasers also have a repetition rate of 100 MHz. The T-Light model femtosecond laser has an output center wavelength of 1560 nm and a pulse width of less than 90 femtoseconds. By multiplying the frequency, the T-Light 780 model has a center wavelength of 780 nm and a pulse between 100 and 120 femtoseconds. The main applications of this product include amplifier seed sources, multiphoton excitation, time-resolved spectroscopy and terahertz generation.
Figure 3 C/M-Fiber series femtosecond laser
The C/M-Fiber series offers greater configuration flexibility than the first two series of femtosecond lasers. With an integrated stepper motor and piezo driver, the laser's repetition rate can be coarse or fine-tuned to synchronize with an external pulse source. In addition to the adjustable repetition rate, the user can also freely configure the optical output port. The C-Fiber series of erbium-doped fiber lasers have a repetition rate of 100 MHz and have three output power levels. It also uses the most advanced ring-shaped fiber passive mode-locking technology to complete key operation through an embedded microcontroller, making it ideal for demanding applications in ultrafast science and industry. The M-Fiber laser has a repetition rate of 250 MHz and has two output power levels that provide pulses with power levels in excess of 400 mW.
The above three types of lasers offer a wide range of wavelength and output power options for applications such as biological and medical diagnostic imaging, but have limited options for pulse width and repetition rate. The following will continue to introduce two femtosecond lasers with shorter pulse widths and higher repetition rates, namely the Octavius ​​series of ultrafast femtosecond lasers.
Figure 4 Octavius ​​series femtosecond laser
The Octavius ​​series of ultrafast lasers are produced by Thorlabs' strategic partner Idesta Quantum Electronics (currently acquired), with OCTAVIUS-1G with 1GHz repetition rate and OCTAVIUS-85M with 85MHz, with a pulse width of only 6 Femtosecond, the spectral width is large. The laser uses a dispersion octave mirror pair that eliminates high-order dispersion for shorter pulse output. High repetition rates on the order of GHz are useful for high cycle pump-detection experiments and frequency comb applications. Recent studies have also shown that GHz ultra-high repetition rate laser can reduce the damage and bleaching of samples in nonlinear imaging and improve the image signal-to-noise ratio. The 85MHz model is best suited for use with amplifier seed sources, especially for optical parametric chirped pulse amplifiers (OPCPA) and attosecond pulse generation.
In addition, the frequency stabilizer RRE100 developed by Menlo Systems is specially developed for the key technology optical frequency of the Nobel Prize in Physics. The entire stabilizer is compact, plug and play, and easy to use with one button. An accelerator device that synchronizes the sampling laser with the particle beam, a pulsed X-ray device, a free electron laser seed source, and an ASOPS asynchronous optical sampling system.
For detailed product introduction, please visit http://?Guide_ID=2024

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