Description
840nm OCT Butterfly SLED
840nm OCT Butterfly SLED (Superluminescent Laser Emitting Diode) is a semiconductor optoelectronic product which can output high quality stable Broadband laser light by the SM or PM pigtail. It’s widely used in biomedical imaging application like Optical Coherence Tomography (OCT) system, Fiber Optic Sensor and Broadband Application. The OCT Butterfly SLED with TEC built in to control the temperature. The butterfly SLED Laser driver is also available.
| Application: | Features: | ![]() |
| OCT System Fiber Optic Sensor Broadband Application Testing System |
Wide Band Low Polarization Sensitivity TEC Built In High Reliability |
Absolute Maximum Ratings:
| Parameter |
Symbol | Value |
Unit | ||
| LD Forward Current | If | 250 | mA | ||
| LD Reverse Voltage | Vr | 2 | V | ||
| Operating Temperature | T | -20~+70 | ℃ | ||
| Storage Temperature | T | -40~+85 | ℃ | ||
| Solder Temperature | T | 260 | ℃ | ||
| Lead Solder Time | 10 | S | |||
| Notice: Above specifications should not be exceeded, or the LD will be seriously damaged. |
Optical and Electrical Specification:
| Parameter |
Symbol | Min. |
Typ. | Max. | Unit | Condition |
| Center Wavelength | λc | 820 | 840 | 860 | nm | |
| 3dB Wavelength Bandwidth | Bw | 40 | nm | CW, If=180mA | ||
| Output Optical Power | Po | 10 | mW | CW, If=180mA | ||
| Spectral Ripple | Δ | 0.1 | 0.2 | dB | CW, If=Iop | |
| Laser Operating Current | Iop | 180 | 220 | mA | CW, Po=10mW | |
| Laser Reverse Voltage | Vr | 2 | V | CW | ||
| TEC Current | Itec | 2 | A | |||
| TEC Voltage840nm OCT Butterfly SLED | Vtec | 3.5 | V | |||
| Thermistor Current | Ithe | 1.2 | A | |||
| Thermistor Voltage | Vthe | 3.2 | V | |||
| Thermistor Resistance | Rthe | 9.5 | 10 | 10.5 | KΩ | |
| Fiber Type | HI 780 oe PM780-HP Fiber | |||||
| Notice: Above specifications are tested in room temperature at 25℃. |
| Slow axis is default aligned to the connector key for PM version. |
| Specifications may change without notice. |
Spectrum Curve:

Drawing:

Pin Information:

Ordering Information (Part Number):
| SLED-WWW-PP–P-FF-J-LL-CC |
||||||
| WWW | PP | P | FF | J | LL | CC |
| Wavelength | Output Optical Power | Pin Assingment | Fiber Type | Fiber Jacket | Fiber Length | Connector |
| 840 – 840nm | 10 – 10mW | A – Type A | H7 – HI 780 | B – 250um Bare Fiber | 02 – 0.2m | NE – None |
| 850 – 850nm | SS – Specify | P7 – PM780-HP | 9 – 900um Loose Tube | 05 – 0.5m | FA – FC/APC | |
| SSS – Specify | 08 – 0.8m | FU – FC/UPC | ||||
| 10 – 1.0m | SA – SC/APC | |||||
| 15– 1.5m | SU – SC/UPC | |||||
| 20 – 2.0m | LA – LC/APC | |||||
| SS – Specify | LU – LC/UPC | |||||
| TA – ST/APC | ||||||
| TU – ST/UPC | ||||||
| SS – Specify | ||||||
Example: SLED-840-10-A-H7-9-10-FA is the PN for 840nm OCT Butterfly SLED, 10mW Output Optical Power, 1.0m HI 780 fiber, 900um loose tube, FC/APC




