Industrial Automation Magazine India

Erbium-Doped Fiber Amplifiers (EDFA)

Published on : Tuesday 30-11--0001

Thorlabs' core-pumped erbium-doped fiber amplifiers (EDFAs) offer >20 dBm (>100 mW) output power with a low noise figure of <5 dB. They are enclosed in a compact, turnkey benchtop package with FC/APC input and output connectors. The EDFA100S is a single mode EDFA with minimal sensitivity to the light polarization, while the EFDA100P is a polarization-maintaining EDFA that only amplifies light polarized along the slow axis of the fiber. Each EDFA includes built-in input and output isolators. In order to support applications involving femtosecond pulses, they are engineered to impart minimal dispersion. The fs Pulse Amplification tab contains more details on femtosecond operation.

The pump current of the erbium-doped fiber amplifier is adjustable through the instrument's front panel, allowing the user to vary the gain and output power of the amplifier. In addition, remote control of the pump current is supported by sending serial commands via a USB 2.0 connector. For added safety, the user may connect an interlock circuit to the 2.5 mm mono jack on the rear panel.

Each EDFA uses a universal power supply allowing operation over 100 - 240 VAC, 50 - 60 Hz without the need to select the line voltage. A region-specific power cord is included.

Features

• Operating Wavelength Range: 1530 - 1565 nm (C-Band)
• Available in Two Versions

1. Single Mode EDFA with >30 dB Small Signal Gain and <0.2 dB Polarization-Dependent Gain
2. Polarization-Maintaining EDFA with >28 dB Small Signal Gain and >25 dB Polarization Extinction Ratio

• Ideal for Use as a Preamplifier for CW and Ultrafast Applications
• <0.06 ps/nm Dispersion within Amplifier to Minimize Pulse Broadening
• Front Panel Controls and Remote Control over USB

General Specifications
Input Voltage	100 - 240 VAC, 50 - 60 Hz
Input Power	20 VA (Max)
Fuse Rating	500 mA
Fuse Type	IEC60127-2/III (250 VA, Slow Blow Type "T")
Dimensions (W x H x D)	5.76" x 3.06" x 12.16" (146.3 mm x 77.7 mm x 308.9 mm)
Weight	2.08 kg (4.58 lbs)
Connections and Controls
Interface Control	Optical Encoder with Push Button
Enable Select	Keypad Switch Enable with LED Indicator
Power On	Key Switch
Fiber Connectors	FC/APC Compatible, 2.0 mm Narrow Key
Input Power Connector	IEC Connector
Interlock	2.5 mm Mono Jack
Communications
Communications Port	USB 2.0 Compatible
COM Connection	USB Type B Connector
Required Cable	USB Type A to Type B Cable (Replacement Item # USB-A-79)

 It is used in Electrical Industries.

Thorlabs, Inc.(USA), Tel: 1-973-300-3000, Email:[email protected]