Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
LDC-3900
Newport LDC-3900, ILX Lightwave, 5-Digit LED Display, Modular Laser Diode Controller
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Newport ILX Lightwave LDC-3900 Modular Laser Diode Controller
The ILX Lightwave LDC-3900 is a modular laser diode controller for industrial automation that provides four rear loading module bays for flexible laser current and temperature control. Its mainframe accepts current source TEC and combination modules for supporting diverse diode packages. This module uses fully isolated channels that prevent ground loops and protects sensitive laser structures. The current source of this unit LDC-3900 cover output ranges from 0 to 8 A for high power diodes. Its available current setpoint resolutions reach 10 microamperes on low current for precise threshold characterization and its compliance voltages are from 5 to 7 V that supports typical telecom laboratory and industrial laser loads effectively. The module features low noise architecture that delivers ripple levels down to one microampere in filtered constant wave operating mode.
Its constant current modes support high bandwidth operation for dynamic wavelength tuning and modulation-based characterization. Its constant optical power mode uses transimpedance photodiode feedback for stable long term optical output regulation. The unit’s external analog modulation inputs accept 0 to 10 V control signals for high-speed current modulation tasks and its dedicated photodiode inputs with adjustable reverse bias supports a wide range of detector responsivities and currents. The integrated TEC controller modules in this LDC-3900 unit provide bipolar constant current drive up to 4 A and 32 W. Its temperature control ranges from -99.9 to +199.9 degrees and its smart integrator hybrid proportional integral control loops deliver fast settling times with excellent temperature stability performance. The unit’s short term temperature stability reaches more 5000th degree Celsius under specified mounting conditions.
The LDC-3900 module features 5-digit green LED display that presents laser current optical power voltage and temperature readings with high clarity. Its dedicated adjust controls per channel simplify manual set up repeatable test execution and troubleshooting activities. An optional GPIB interface enables full remote programming and readback for automated production or characterization systems. Its laser safety features include a keys-witch an interlock input and configurable output delay timing to help the product meet CDRH US 21 CFR 1040.10 requirements. Its power supply options support 100, 120, 200 and 240 V mains selections to support deployment in varied industrial laboratory and field installations. The unit’s mechanical construction includes a rack mountable chassis option and provides secure grounding through a front panel jack.
| Model | LDC-3900 |
|---|---|
| Manufacturer | Newport |
| Part Type | Modular laser diode controller |
| Chassis Ground | 4 mm Banana jack |
| Power Requirements (50–60 Hz) | 100 / 120 / 220 / 240 VAC, user-selectable (+6% / –10%) |
| Size (H × W × D) | 145 × 426 × 346 mm (5 5/8" × 16 3/4" × 13 5/8") |
| Laser Safety Features | Keyswitch, interlock, output delay |
| Displays | Laser Display: 5-digit green LEDTEC Display: 5-digit green LED |
| Photodiode Feedback | Transimpedance |
| External Modulation | 0–10 V |
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