19 March 2010


Emcore releases 100mW ultra-low-RIN DWDM laser modules

Emcore Corp of Albuquerque, NM, USA, which makes components and subsystems for the broadband, fiber-optic, and solar power markets, has made available a new line of high-power (>100mW) continuous-wave (CW) source laser modules for 1550nm-range dense wavelength division multiplexing (DWDM) applications.

Available in all ITU grid wavelengths, the modules (model number 1782) offer solutions for the growing demands of high optical power in DWDM, cable television (CATV) networks, and free-space optics applications, says Emcore.

The laser module is DC-coupled with a built-in thermo-electric cooler (TEC), thermistor, and monitor photodiode. The device is mounted in a 14-pin, OC-48 pinout compatible butterfly package, with the optical isolator mounted on the TEC. The operating temperature ranges from –20ºC to +65ºC, and the maximum laser bias current is 450mA. However, the module incorporates an high-efficiency coupling scheme to deliver more than 100mW CW optical output power at a low bias current. The RIN (relative intensity noise) is typically less than –170dB/Hz.

“The ultra low RIN and high optical power makes this product family an excellent choice to design into externally modulated transmitters that require high optical power or dual optical power outputs for RFoG [radio frequency over glass] and FTTx networks,” says Vu Tran, Optical Component product line manager for Emcore Broadband.

Emcore is exhibiting at next week’s Optical Fiber Communication Conference & Exposition (OFC 2010) in San Diego, CA (23–25 March).

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