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3. Key Technical Specifications
| Parameter | Specification Value |
|---|---|
| Catalog Part Number | 2114B-30SLT |
| Manufacturer | JDSU (JDS Uniphase / Lumentum) |
| Laser Type | Distributed Feedback (DFB) Laser Diode |
| Operating Wavelength | 1550 nm nominal (C-Band transmission window) |
| Package Type | Standard multi-pin hermetic butterfly package |
| Temperature Control | Integrated Thermoelectric Cooler (TEC) & 10kΩ NTC thermistor |
| Optical Component Integration | Internal optical isolator for high back-reflection suppression |
| Fiber Output Pigtail | Single-mode fiber pigtail with FC/APC connector |
| Forward Drive Current | 100 mA to 150 mA nominal |
| Operating Temperature Range | −20°C to +65°C |
| Primary Application | CATV forward path transmission, RF-over-Fiber (RFoF), DWDM telecom links |
4. Product Introduction & Supply Chain Strategy
The JDSU 2114B-30SLT is a high-performance 1550 nm cooled Distributed Feedback (DFB) laser module packaged in an industry-standard butterfly enclosure. Designed for demanding optical transmission infrastructure, it incorporates an internal TEC (Thermoelectric Cooler) and monitoring photodiode to maintain strict wavelength stability and low Relative Intensity Noise (RIN) across varying ambient temperatures.
This unit is a Brand New Surplus item. It is not used, not pulled from decommissioned headend gear, and not refurbished. All optical pigtails, pins, and hermetic seals undergo strict inspection to verify OEM specification compliance.
Securing the 2114B-30SLT as New Surplus guarantees immediate restoration of optical transmitter links without long lead times. Refurbished or degraded laser modules suffer from diode thermal aging, threshold current drift, or damaged optical fiber pigtails that cause severe signal degradation and bit-error-rate (BER) spikes. Sourcing verified New Surplus ensures full optical output power and low noise performance.
2114B-30SLT
2114B-30SLT
5. Installation & Configuration Guide
Invisible Laser Radiation Hazard
This module emits invisible infrared laser radiation at 1550 nm. Never look directly into the optical fiber connector end face or exposed pigtail core when the laser drive circuit is powered.
1
ESD & Thermal Prep
Prerequisite
1.ESD & Thermal Prep:Prerequisite.
Wear a grounded ESD wrist strap before handling the device. Ensure the mounting surface has proper thermal conductivity and heat sinking to handle heat dissipated by the internal TEC.
2
Mechanical Mounting
Hardware Setup
2.Mechanical Mounting:Hardware Setup.
Mount the butterfly package securely to a heat sink plate using appropriate thermal interface material (TIM) and recommended screw torque to prevent casing deformation.
3
Electrical Pin Termination
Connections
3.Electrical Pin Termination:Connections.
Solder or insert connector pins according to the 2114-series pinout diagram (TEC+, TEC-, Thermistor, Photodiode, Laser Anode/Cathode). Maintain low lead inductance on RF input lines.
4
Optical Pigtail Routing
Fiber Care
4.Optical Pigtail Routing:Fiber Care.
Clean the FC/APC fiber connector end face using a lint-free optical cleaner before mating. Maintain a minimum bend radius of 30 mm on the fiber pigtail to avoid micro-bend signal loss.
5
TEC & Drive Current Turn-On
Verification
5.TEC & Drive Current Turn-On:Verification.
Enable the TEC temperature control loop first to stabilize the laser chip at 25°C. Gradually ramp up forward drive current while monitoring output power and RIN on an optical spectrum analyzer.
6. System Compatibility & Maintenance Notes
The 2114B-30SLT operates as an essential optical engine within hybrid fiber-coax (HFC) and fiber transport platforms:
- Platform Compatibility: Used in various optical transmitter cards, CATV headend transmitters, and custom RF-over-fiber transport chassis.
- Thermal Management: Operating the module without active TEC temperature control will cause rapid thermal drift and potential diode thermal degradation.
- Cleaning Protocol: Always inspect and clean optical connectors with an optical scope and isopropyl alcohol wipes prior to coupling into optical patch panels.
7. Frequently Asked Questions (FAQ)
Q: Is this JDSU 2114B-30SLT laser module brand new or pulled from used equipment?
A: This product is a Brand New Surplus unit. It is not used, not pulled from decommissioned gear, and not refurbished. All modules undergo physical and electrical inspection to confirm full functionality.
Q: What fiber optic connector is attached to the pigtail?
A: It typically features a single-mode fiber pigtail terminated with an FC/APC (Angled Physical Contact) connector to minimize optical back reflection.
Q: Why is the internal Thermoelectric Cooler (TEC) necessary?
A: DFB laser diodes shift wavelength and output power as temperature fluctuates. The TEC keeps the internal laser chip locked at a precise temperature (typically 25°C) to prevent wavelength drift and maintain low noise performance.
Q: What warranty applies to this New Surplus module?
A: We back this component with a full 1-year functional replacement warranty from the date of shipment to ensure complete reliability for your network.
