Power stability, linewidth, beam quality
YL-I-638638 nm red high-power CW laser
638 nmThe YL-I-638 is a 638 nm continuous-wave direct diode laser. Electrical current creates optical gain in a semiconductor junction, and the diode generates the laser light directly. Optical feedback selects the oscillating modes, while drive current and junction temperature affect output power and wavelength. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command. The specified fiber connection delivers the generated light to the experiment; its core size, numerical aperture and connector need to match the receiving optics.
Specifications
YL-I-638
13 specification rows
| Wavelength | 638 nm |
|---|---|
| Output / average power | 1~40 W |
| Beam / notes | Ultra compact, medical treatment |
| Fiber Core Diameter (um) | 200, 400, 600, 0.22NA |
| Fiber Connector | SMA905, FC/PC optional |
| Fiber lengths | 1m |
| Fiber Jacket | PVC, Metal optional |
| Power stability (rms, 4 hours±3℃) | <2%, <1% |
| customers’ equipment. Cooled method | Air cooled |
| Storage temperature (℃) | -20-50 |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz optional; TTL and Analog optional |
| Expected lifetime (hours) | >10000 |
| Cooled method | Air cooled |
| Operation temperature (℃) | 15-35 |
What do you need?
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Model selection
Nearby series comparison
Compare YL-I-638 with the closest available models in the CW Lasers family.
| Selection parameter | YL-I-638 (current) | LDM-638-10-2 | LDM-638-20-2 |
|---|---|---|---|
| Wavelength | 638 nm | 638 nm | 638 nm |
| Optical power / pulse energy | 1~40 W | 10 W | 20 W |
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