The 1550 femtosecond laser source is a turnkey, maintenance-free ultrafast mode-locked fiber laser source. The system adopts a MOPA design structure, and the optical path and circuit structure are integrated, compact and portable, and easy to integrate into scientific research user devices or industrial laser systems. Due to its high stability and reliability, customizability and excellent cost performance, it is an ideal light source for popular applications such as terahertz generation and optical quantum communication.
The right figure is a schematic diagram of the structure of Cofiber 1550, which uses 1550NM seed signal light (Oscillator) and pump light (Pump) with excellent beam quality, and is coupled into erbium-doped fiber (EDF) for amplification in a certain way. The oscillation cavity structure is protected by an optical isolator, thereby achieving high-efficiency amplification of the seed light source, and finally compressing its pulse width to less than 100 femtoseconds through a pigtail or grating.

The mode-locked design structure based on ring oscillation is protected by an optical isolator to ensure that this structure is in a very stable and reliable operating state;

Technical indicators

Parameters	Value
Operating wavelength	1550 ±10nm
Pulse width	＜120 fs
Average laser power	1W
Power instability	＜±1%
Repetition frequency	80MHz
Single pulse energy	＞10nJ
Laser polarization state	linear polarization，DOP＞20dB
Laser output mode	optical fiber
Beam quality	M2＜1.2   TEMOO
Beam diameter	＜1.6mm
Beam divergence angle	＜1.5mrad
Synchronous electrical signal interface	SMA
Warm-up time	＜1min
Power supply	AC110~240VAC
Fiber type	single-mode
Packaging form	Benchtop