Single-Mode Digital D-Type Module with Optical Isolator
Our Single-Mode Digital D-Type Module with Optical Isolator is wavelength-stabilized and comes standard with a circularized and collimated output beam, integral laser line filter pack, internal thermistor and TEC, linear tracking photodiode and ESD protection, and UART I/O interface.
Features
- High Power Single Frequency Output (SLM)
- Ultra-Narrow Spectral Bandwidth
- Circularized & Collimated Output Beam
- Gaussian TEM00 Spatial Mode
- Integral Laser Line Filters
- SMSR 70 dB w/ laser line filter (40 dB without)
- Integral Thermistor & TEC
- Integral ESD Protection
- Integral Linear Tracking Photodiode
- Designed with modularity in mind. It comes standard with a 3-5 X adjustable beam expander
- Digital UART I/O
- Available with a “D-Type Switch Box” to enable
plug-and-play
Applications

Raman Microscopy
Sources for Raman microscopes, where the spot is focused to very small dimensions.

Raman Spectroscopy
Excitation sources behind more than 70% of Raman system integrators.

Handheld Raman
Excitation sources for handheld analyzers used in raw-material ID and pharmaceutical incoming inspection.

Process Raman
Fiber-coupled sources for in-line monitoring in demanding plant environments.

Remote Sensing
Ultra-stable single-frequency power for particle detection and gas sensing.

Metrology and Interferometry
High-precision laser distance measurement, a demanding application for semiconductor lasers.

Atomic Clocks
Narrow-linewidth lasers for optical molasses and trapping atomic ensembles in magneto-optical traps.

Quantum Computing
IPS lasers have been used in quantum computing and other scientific fields.
Specifications
DETAILED INFORMATION
Designed to replace expensive DFB, DBR, fiber, and external cavity lasers, the Single-Mode Spectrum Stabilized Laser offers superior wavelength stability over time, temperature
(0.007 nm/°C), and vibration, and is manufactured to meet the most demanding wavelength requirements. The OEM D-type module comes standard with a circularized and collimated output beam, integral laser line filter pack, internal thermistor and TEC, linear tracking photodiode and ESD protection, and two laser line filters. The D-type OEM module was designed with modularity in mind. It comes standard with a 3-5 X adjustable beam expander and optionally with a single mode or multimode fiber coupling port.
These free-space or fiber-coupled devices can be integrated with compact, low-noise, high accuracy current and TEC drivers to provide a complete OEM laser module solution. The user or OEM system integrator only needs to supply DC power, heatsinking, and control signals. These modules feature:
- Analog (0-1V DC) or Digital (RS-232, I2C, or USB) control modes
- Photodiode power monitoring
- Pulse width modulation
- Automatic Current Control or Automatic Power Control
- Low power consumption
For a more detailed description see the following datasheets. If you don’t see exactly what you need, give us a call we have customized these modules in many different ways for various customers to meet their most demanding needs.
λ
(nm)
Output Power
(mW)
Base Part
Number
633
35
I0633SD0035B-IS-HD
638
35
I0638SD0035B-IS-HD
780
90
I0780SD0090B-IS-HD
783
90
I0783SD0090B-IS-HD
785
90
I0785SD0090B-IS-HD
785
135
I0785SD0135B-IS-HD
808
90
I0808SD0090B-IS-HD
808
135
I0808SD0135B-IS-HD
830
90
I0830SD0090B-IS-HD
830
135
I0830SD0135B-IS-HD
Optical Specs
Wavelength Tolerance
+/- 0.5 nm
Spectral Linewidth FWHM
<100MHz
SMSR w/ Integral Laser Line Filter
70dB
Power Stability
+/- 0.5% to 1% typical
Wavelength Stability Range
15ºC to 45ºC
Power Consumption
2W typical, 5W max
Linear Tracking Photodiode
(Optional, Internal TIA Output)
1V Max
Polarization Extinction Ratio (PER)
>17 dB (20 dB typical)
Polarization Orientation
Perpendicular to the plane of base plate mounting plane.
Spatial Profile
TEM00
Beam Quality (M², 1/e²)
<1.2
Beam Ellipticity
<1.5:1
Beam Diameter
4.0mm (+/-0.4mm) w/ beam expander
~0.7mm w/o beam expander
Beam Divergence
<1 mrad w/beam expander
~2 mrad w/o beam expander
Cold Start to <1 Wavenumber
10 Seconds
Warm Start to <1 Wavenumber
1 Second
Warm Start to <0.1 Wavenumber
3 Seconds
Electrical Pinout
Pin
Symbol
Wire Color
Description
Notess
1
VCC
Red
Supply Voltage
5-12V DC, 1 Amp
2**
GND Return
Gray
Ground Return
signal ground
3
PD
Gray
Linear Tracking PhotoDiode
Voltage Proportional
to PD Current
4
LD Set
Gray
Laser Power Control
0.0V DC – 5V DC –
Disable by default
5*
LD Enable
Gray
Laser Enable
5V TTL, See Note 1 Below
6+
Tx
Gray
Transmit
(UART 3.3V)
7+
Rx
Gray
Receive
(UART 3.3V)
8**
Sig GND
Gray
Signal Ground
Tie GND Return (Pin 2)
NOTES: Pins 1, 2**, 5*, and 8** are required for laser operation
*Laser Enable is required unless module is set to “Always On” Laser Enable Mode (Mode 2)
**GND must be supplied to both GND pins (pin 2 and pin 8)
+ Transmit from host connects to Rx on Laser Module, receive on host connects to Tx on Laser Module
Digital D-Type Module
Software
Digital D-Type
- Custom wavelengths available upon request
- Adjustable beam expander to set beam diameter at specified distances
- Multi-mode Achro-fiber port available
- Single mode fiber port
- Optical isolator available for 633nm, 638nm, 780nm, 785nm in standard D-Type module
- Optical isolator available for 976nm and 1064nm in larger D-Type module
Digital D-Type
Part Number Schema: