1550nm laser module

Buyers must prioritize Output Power (mW), Spectral Linewidth, and Side-Mode Suppression Ratio (SMSR). For telecommunications, a high SMSR (>35dB) is critical to ensure signal integrity. Additionally, verify the Fiber Type (Single-mode vs. Polarization-maintaining) and the Package Type (e.g., Butterfly 14-pin, TO-can, or Coaxial) to ensure compatibility with your existing hardware.

The 1550nm wavelength is primarily used in Fiber Optic Communications (DWDM) due to its low attenuation in silica fiber. It is also widely adopted in LiDAR systems for autonomous driving because it is eye-safe at higher powers compared to 905nm, and in Gas Sensing (TDLAS) for detecting moisture or methane.

For high-precision applications, ensure the module includes an internal Thermoelectric Cooler (TEC) and a Thermistor. These components are essential for Wavelength Stabilization, as 1550nm lasers are sensitive to temperature fluctuations which can cause frequency drift. A built-in Optical Isolator is also recommended to prevent back-reflection damage.

Products must adhere to IEC 60825-1 or FDA (CDRH) 21 CFR 1040.10 for laser safety classification. Since these are electronic components, RoHS and REACH compliance is necessary for the EU market. For telecommunications equipment, look for suppliers following Telcordia GR-468-CORE reliability testing standards.

Request a Factory Acceptance Test (FAT) report or a Certificate of Analysis (COA) for each serialized unit. For high-value orders, use Made-in-China.com's Secured Trading services to ensure payment is only released after the goods pass a third-party inspection (such as SGS or Intertek) focusing on power stability and wavelength accuracy.

Laser modules are highly sensitive to Electrostatic Discharge (ESD) and mechanical shock. Ensure the supplier uses Anti-static packaging and vacuum-sealed moisture-barrier bags. For international freight, specify cushioned, double-walled corrugated boxes and consider adding shock-indicator stickers to the outer pallet to monitor handling during transit.

Yes, high-power or narrow-linewidth lasers may fall under Dual-Use Goods export controls (e.g., Wassenaar Arrangement). Always confirm with the supplier if an Export License is required for your specific country. Ensure all HS Codes (typically 8541.41) are correctly declared to avoid customs delays or seizures.

Pricing for 1550nm modules is highly volume-dependent; bulk orders (>500 units) can often secure 20-40% discounts compared to sample pricing. When negotiating, define a clear lead-time schedule, as specialized chips may have long fabrication cycles. It is advisable to source from Verified Manufacturers on Made-in-China.com who have in-house MOCVD epitaxial growth capabilities to ensure supply chain stability.