Dual 50 GHz Modulator Driver/RF Amplifier (EOL) (MD-50-DX-R)

Data Sheet

Product Overview

The MD-50-DX-R is a dual channel, 50 GHz Bandwidth RF Amplifier, enclosed in a single 1U rackmount housing. Each channel on the MD-50-DX-R provides a high-quality, single-ended voltage to drive an external LiNbO3 modulator, with independent control and monitoring on both amplified signals. Typical applications include driving EML, EAM, and Mach-Zehnder modulators, and amplifies 60 Gb/s data input signals to >7.5 Vp-p drive levels. The MD-50-DX-R flat gain and flat group delay response yields a high-quality, low-jitter electrical drive signal, that can also be used as a wideband RF amplifier with useful bandwidth of up to 50 GHz. Its high gain of 26 dB makes it suitable for many RF link applications, and is a perfect match to Optilab’s extensive optical transmitter catalog, with remote accessibility via a single USB port.


  • 60 Gb/s digital modulation
  • OC-768 SONET/SDH
  • Analog RF amplification to 50 GHz
  • RF over Fiber Link Amplifier
  • General laboratory testing


  • Dual Channel Driver/Amplifier
  • Analog bandwidth exceeds 50 GHz
  • Data rates up to 60 Gb/s
  • Dual Independent RF Channels
  • Variable Gain Control built-in
  • 2.4 mm connectors (optional K)
  • Remote control via USB

Feature Name Description
General Specifications
3dB S21 Bandwidth 50 GHz typ.
S11 Characteristics < -10 dB at 30 GHz
Saturated Output Power >23 dBm typ.
RF Gain 15 dB to 30 dB, variable
Gain Ripple ±1.5 dB over20 GHz
Input, Output Impedance 50 Ω
Input VSWR to -10 GHz 1.6:1 typ.
Output VSWR 2.0:1 typ.
Total Power Dissipation 20 W typ.
RF-Gain Adjustment Range 15 dB typ.
DC Output Adjustable 0-10 V DC
Digital Application
Data Rate Up to 60 Gb/s
Pulse Response 10%, rise time 8 ps typ.
Output Amplitude 7.5 Vp-p typ.
Input Range 500 mV to 1.5 V
Analog Applications
P1dB Output > 23 dBm max.
Group Delay (2 to 10 GHz) ± 25 ps
Noise Figure 11 dB
Small Signal Gain 30 dB typ.
Mechanical Specifications
Operating Temperature 0° C to +60° C
Storage Temperature -40° C to +85° C
Operating Humidity 85%
Power Supply Requirements 110/220 V AC, 50/60 Hz
Accessories Included AC Power Cord, USB Cord
RF Input/Output Connector 2.4 mm (V), K-Connector Optional
Remote Control USB port
Display Output Dual LCD