Terahertz Antennas for 1560 nm

  • Iron-Doped Emitter with >6 THz Bandwidth
  • Optimized Structures for High Signal-to-Noise Ratios and Improved Bandwidth
  • Includes Individual Test Report


THz Receiver for 1560 nm

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Jason Reeves
Jason Reeves
Menlo Systems
Feedback? Questions? Need a Quote?

Please note that these terahertz antennas are available directly from Menlo Systems, Inc. within the United States and from Menlo Systems GmbH outside the United States.
United States
Phone: +1-973-300-4490
Email: ussales@menlosystems.com
Outside United States
Phone: +49-89-189166-0
Email: sales@menlosystems.com


  • THz Generation and Detection
  • THz Imaging
  • OEM Suppliers


  • Optimized for Lasers Around 1560 nm and Pulse Widths <100 fs at 100 MHz Repetition Rates
  • High Bias Voltages and Unipolar Modulation
  • Specific Antenna Design for Emitter / Receiver Applications
  • Flexible Fiber-Coupled Design
  • Two M4 Tapped Holes for Post Mounting

Menlo Systems’ fiber-coupled TERA15-FC antenna modules for 1560 nm lasers enable flexible, robust all-fiber THz time-domain spectroscopy (THz-TDS) systems. The high-power antenna technology is based on multilayered InGaAs/InAlAs mesa structures that provide high-voltage biasing of the emitter. The emitter and detector structures are optimized for high THz bandwidths. A polarization-maintaining (PM) coupling fiber ensures reliable and stable operation even under harsh environmental conditions.

To view lenses designed for the terahertz regime, see Menlo Systems' THz lenses.

For complete terahertz solutions that include a laser source and data acquisition hardware and software, see the TERA-K15-SYNC, TERA-SMART, and TERA-ASOPS spectrometer systems.

Item # TERA15-TX-FC (Emitter) TERA15-RX-FC (Receiver)
Photoconductive Material Fe:InGaAs/InAlAs LT InGaAs/InAlAs
Spectral Photosensitivity Up to 1.57 µm
Antenna Type Strip Line: 100 µm Dipole: 25 µm
Gap: 10 µm
THz Beam Divergence ±12.5° FWHMa ±12.5° FWHMa
THz Power Up to 60 µWb N/A
Electrical Connection LEMO 0S Connector Cable, 1 m Long SMB Connector Cable with BNC Adapter, 1 m Long
Fiber Patch Cable PM PANDA Fiber, FC/APC, 1 m Longc
Operating Conditions
Average Optical Powerd <30 mW <30 mW
Optical Pulse Duration <100 fs <100 fs
Repetition Rate Range 100 MHz (Nominal)
80 - 250 MHz (Full Range)
Bias Voltage 100 V (Unipolar)
0 - 100 V Modulation
Modulation Frequency Up to 75 kHz (Unipolar) N/A
Recommended Laser Sources ELMO
  • Measured with Golay Cell
  • Measured with Calibrated Pyrodetector
  • SMF-28 Fiber Available on Request
  • Caution: Maximum Optical Power is 30 mW for Emitter and 30 mW for Receiver at 100 MHz Laser Repetition Rate

Please refer to the recommended laser parameters and bias voltage. Improper use or experimental conditions are excluded from warranty.

Performance verified by and valid only for a complete Menlo Systems THz spectrometer.

Posted Comments:
Antonio Saldanio Macedo  (posted 2023-12-15 10:10:46.157)
noise between two consecutive THz signals generated by photoconductive antennas. Why?
hchow  (posted 2023-12-18 10:11:53.0)
Dear Antonio, I will personally reach out to you to provide more information. Thank you.
djamal.gacemi  (posted 2014-06-04 09:45:20.173)
Hello, could you tell me the value of the photocurrent you obtain with 10mW optical power, and 35V bias ? THank you
jlow  (posted 2014-07-29 04:01:05.0)
Response from Jeremy at Thorlabs: When the TERA8-1 are tested with 30VDC bias and 10mW optical power, the typical current is 40uA. Menlo Systems should have the test report for your particular antenna on file. You can contact them at sales@menlosystems.com for the test report.
tcohen  (posted 2012-06-28 11:31:00.0)
Response from Tim at Thorlabs to Dominik: Thank you for your feedback! We are looking into compiling the data on the beam profile for you and I have contacted you to keep you updated and assist you directly.
d.stich  (posted 2012-06-25 05:33:03.0)
Hello, could you specify which Si-lenses you use for the 800 and 1550nm driven THz-Antennas and what the beam profile looks like after the Si-Lense (NA, intensity profile)? Regards, Dominik
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Terahertz Antennas for 1560 nm

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
TERA15-TX-FC Support Documentation
TERA15-TX-FCTerahertz Emitter for 1560 nm, Fiber-Coupled Input
Menlo Lead Time
TERA15-RX-FC Support Documentation
TERA15-RX-FCTerahertz Receiver for 1560 nm, Fiber-Coupled Input
Menlo Lead Time