Product Overview
The EMLT Series Electro-Absorption Modulated Laser Transmitter is a semiconductor laser that integrates a distributed feedback (DFB) laser and an electro-absorption modulator (EAM) within a single package. This design eliminates the need for external modulators, reducing system complexity, power consumption, and size while improving thermal management. Capable of modulation speeds up to 20 GHz for both analog and digital responses, the EMLT delivers high-speed modulation with precise optical output control. The integrated EAM minimizes wavelength shifts during modulation, ensuring stable signal transmission over long distances, making the EMLT ideal for high-speed optical communication systems. Its compact and efficient design is well-suited for modern applications requiring reliable, high-performance data transmission. The laser wavelength can be made to match a specific ITU for a special order.
Features
- High Optical Output Power
- Low Modulation Voltage
- Wide Bandwidth
- Excellent Stability
Applications
- Optical Communication
- Quantum Optics
- DWDM Systems
Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Wavelength (C-Band) | 1520 | 1550 | 1590 | nm |
| Laser Threshold Current | 20 | mA | ||
| Laser Current | 40 | 60 | mA | |
| Laser Bias Voltage | 2.5 | V | ||
| Forward Voltage | 2 | 3 | V | |
| Modulation Extinction Ratio | 9.5 | 12 | dB | |
| Side Mode Suppression Ratio | 30 | 40 | dB | |
| Output Power | 1.5 | 3 | 10 | mW |
| Bandwidth (3dB) | 10 | 16 | GHz | |
| Return Loss | -27 | -30 | dB | |
| Input 1 dB Compression | 15 | dBm | ||
| Relative Intensity Noise | -130 | dB/Hz | ||
| Input RF Amplitude | 2.5 | V | ||
| RF Connector | 2.92 SMA F | |||
| Thermistor Resistance | 10 | K ohm | ||
| TEC Current* | 1.5 | A | ||
| Monitor PD Current | 3 | mA | ||
| Monitor Dark Current | 100 | nA | ||
| Operation Temperature | -40 | 25 | 85 | °C |
| Storage Temperature | -40 | 85 | °C |
*TEC Current is a registered trademark of the International Electrotechnical Commission.
Dimensions
Product dimensions are provided in millimeters (mm). The main laser module body has approximate dimensions of 30.00 mm in length and 12.70 mm in diameter. It features a fiber optic connector at one end and a multi-pin electrical connector. Product dimensions may change without notice; this is sometimes required for non-standard specifications.
Electrical Connection
| Pin | Function |
|---|---|
| 1 | Thermistor |
| 2 | Thermistor |
| 3 | LD+ |
| 4 | PD- |
| 5 | PD+ |
| 6 | TEC+ |
| 7 | TEC- |
Ordering Information
| Category | Options |
|---|---|
| Prefix | EMLT- |
| Speed | 10GHz (A), 12GHz (1), 16GHz (6) |
| Wavelength | 1549.55 nm (4955), 1550.55 nm (5055), Special (000) |
| Output Fiber | SM28 (1), PM1550 (2), PM1310 (3) |
| Cable | 0.9mm tube (1) |
| Fiber Length | 0.5m (1), Special (0) |
| Connector | None (N), SC/PC (1), FC/PC (2), LC/PC (3), Special (0) |
Note: Specific combinations of options may not be available.
Typical Performance
S21 Measurement:
The S21 parameter, representing the transmission coefficient, was measured using a Vector Network Analyzer. The measurement was performed on June 2, 2025, at 18:12:54. The plot displays the signal magnitude in dB against frequency in GHz, spanning from 0.050 GHz to 20.050 GHz.
- Marker 1: -37.725 dB at 50.0000 MHz
- Marker 2: -35.729 dB at 12.0000 GHz
- Marker 3: -39.358 dB at 17.278001713 GHz
Caution: Electrostatic Sensitivity
Handle with care to prevent electrostatic discharge (ESD) damage:
- Never touch the laser diode and the module with bare hands.
- Always use appropriate protective equipment when handling a laser diode.
- It is recommended to mount the laser diode using an ionic gun and ESD finger cots.
⚠️ Electrostatic Sensitive Device
Laser Safety
This product is classified as a FDA/CDRH Class 1M laser product, meeting the standards in Title 21 of the Code of Federal Regulations (CFR). It has been classified under FDA/CDRH accession number 0220191 and tested according to IEC 60825-1:2007 / EN 60825-1:2007. As a Class 1M laser product, users should be aware of potential hazards:
- For diverging beams: Viewing the laser output with certain optical instruments (e.g., eye loupes, magnifiers, microscopes) within a distance of 100 mm may pose an eye hazard.
- For collimated beams: Viewing the laser output with instruments designed for distance (e.g., telescopes, binoculars) may pose an eye hazard.
Key Laser Specifications:
- Wavelength: 1.3/1.5 μm
- Maximum Power: 30 mW
Laser Warning Labels:
DANGER: INVISIBLE LASER RADIATION
AVOID DIRECT EXPOSURE TO BEAM
DANGER: INVISIBLE LASER RADIATION IS EMITTED FROM THE END OF FIBER OR CONNECTOR
Labels indicate: Wavelength: 1.5 µm, Max. Output: 50 mW, Class 1M Laser Product. Avoid direct exposure to beam. Do not view beam directly with optical instruments.
Compliance: Complies with 21 CRF 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007. Model Number: G8760-073-001 REV.3
*Caution: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
*IEC is a registered trademark of the International Electrotechnical Commission.
Legal Notices
All product information is believed to be accurate and is subject to change without notice. Information contained herein shall legally bind Agiltron only if it is specifically incorporated into the terms and conditions of a sales agreement. Some specific combinations of options may not be available. The user assumes all risks and liability whatsoever in connection with the use of a product or its application.
Revision: 08/07/25
