This document describes the features and characteristics of Sony's SLD237VL high-power AlGaAs laser diode, including high power, low current consumption, small astigmatism, and small package size.
The Sony SLD237VL is a high‑power, index‑guided AlGaAs laser diode intended for optical pickup applications such as CD‑R/RW. The manual describes its structure, recommended operating optical output (80 mW), and absolute maximum ratings.
Key sections include a description of features, a connection diagram, detailed optical and electrical characteristics, and extensive safety notes covering laser class, eye protection, and handling of the gallium‑arsenide material.
| Threshold current (Ith) | Min 25 mA, Typ 30 mA, Max 40 mA |
|---|---|
| Operating voltage (Vop) | Typical 2.0 V, Max 2.3 V |
| Wavelength | Min 779 nm, Typ 784 nm, Max 789 nm |
| Recommended optical output power | 80 mW |
| Maximum optical power (continuous) | 90 mW CW |
The absolute maximum continuous optical output is 90 mW.
Avoid direct eye exposure, always wear laser‑blocking safety goggles, and protect against electrostatic discharge and surge currents.
The device can operate from –10 °C to +70 °C in pulse mode.
The laser diode comes in a small 5.6 mm package.