DVD Laser Diode Model Specifications Table
Key DVD laser diode models and their specifications, including wavelength, optical power, operating temperature, and package type.
| Model | Manufacturer | Wavelength (nm) | Optical Power (mW) | Operating Temp. (°C) | Package Type | Notes |
|---|---|---|---|---|---|---|
| RLD2WMNL2 | ROHM | 650 (DVD), 780 (CD) | Low output, optimized for minimal current | - | CAN-type with sealed glass window | Stable operation up to 85°C, reduced operating current by 44% (DVD) and 43% (CD) compared to conventional diodes |
| RLD65MZT1 | Rohm | 650 | Typical DVD-ROM red laser diode | - | Standard | Datasheet available for detailed electrical and optical characteristics |
| AD9665 (Driver) | Analog Devices | 650 (DVD) | Read channel continuous, Write channels 150–325 mA | - | IC | Four-channel driver for CD-RW/DVD-RW, LVDS/TTL interface, on-chip oscillator for modulation |
| LMH6525/6526 (Driver) | Texas Instruments | 650 (DVD), 780 (CD) | Read 150 mA, Write 150–300 mA per channel | - | IC | Four-channel driver, supports read/write/erase, LVDS interface, high-frequency modulator for noise reduction |
Notes on Specifications
- Wavelength: DVD laser diodes typically operate at 650 nm (red) for DVD reading/writing and 780 nm for CD compatibility.
- Optical Power: Varies by model and application; low-output diodes are optimized for minimal current consumption while maintaining reliable read/write performance.
- Operating Temperature: Many modern diodes, such as the RLD2WMNL2, are designed for stable operation up to 85°C, ensuring reliability in diverse environments.
- Package Type: CAN-type packages with sealed glass windows are common for high reliability and minimal optical loss.
- Drivers: Laser diode drivers like AD9665 and LMH6525/6526 provide precise current control, modulation, and multi-channel operation for read/write/erase functions in DVD/CD systems. This table provides a quick reference for engineers and designers to select appropriate DVD laser diodes and drivers based on optical, electrical, and thermal requirements, ensuring compatibility and optimal performance in DVD/CD applications .
DVD Laser Diode Model Specifications Table
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