Beyond Imaging
Lasers for Swept-Source OCT
Santec has over 15 years of experience developing laser light sources for Optical Coherence Tomography. We now offer a broad range of products providing flexibility to optimize the imaging speed and performance for each application. In SS-OCT, the axial resolution is determined by the scan range of the laser. We offer some of the widest scan ranges on the market, up to 170nm with high scan speeds. Our latest tunable VCSEL technology offers a reconfigurable scan rate up to 400 kHz and an ultra-long coherence length of over 100m.
Swept-Source Lasers
| Model | Center Wavelength | Features | Technology |
|---|---|---|---|
| HSL-1 | 1060 nm | Flexible Scan Rate & Range, Long Coherence Length |
Tunable VCSEL |
| HSL-10 | 1060 nm | High Scan Rate | MEMS External Cavity |
| HSL-20 | 1310 nm | High Scan Rate / Wide Scan Range | MEMS External Cavity |
| HSL-2100 | 1310 nm | Linear Scan / Wide Scan Range | Polygon External Cavity |
1060nm , Flexible Scan Rate & Range
HSL-1NEW
HSL-1 is based on advanced electrically pumped VCSEL (vertical cavity surface emitting laser) technology. It delivers the best in class performance including long coherence length, variable scan rate and low signal noise. The laser can be configured with a high scan rate of up to 400 kHz and its ultra-long coherence length eliminates the coherence revival. This is an attractive laser for SS-OCT. It is also eminently suitable for other applications such as sensing, spectroscopy and LiDAR. The HSL-1 is a robust and reliable laser in a compact package. It is manufactured using the standard semiconductor processes that can be scaled to provide a very low cost solution in high volumes.
- High scanning speed
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Long coherence length eliminates coherence revival
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No mode competition noise
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4 scan speeds, software configurable
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Integrated K-trigger
- Ophthalmology
-
Imaging high water content samples
- Center wavelength: 1060 nm
- Maximum output power: ≧ 40 mW
- Scan range: ≧ 75 nm
- Scan rate: 10 - 400 kHz (selectable)
- Coherence length : > 100 m (theoretical value)
1060nm , High Speed Model
HSL-10
HSL-10 is an integrated MEMS based swept source laser that outperforms other lasers in speed, coherence length and scan range. It provides 100 kHz swept rates with superior stability and reliability. The source is equipped with a K-trigger and start-trigger for system synchronization.
- Santec proprietary MEMS technology
- Wide scan range with long coherence length
- K-trigger integrated
- Unidirectional sweep
- OEM package & customization available
- Retinal imaging
- Center wavelength: 1060 nm
- Maximum output power: ≧ 40 mW
- Scan range: ≧ 90 nm
- Scan rate: 100 kHz
- Coherence length : ≧ 10mm
Scan Characteristics
1310nm , High Speed / Long Imaging Range
HSL-20
HSL-20 is an integrated MEMS based swept source laser that combines high speed, with a long coherence length and wide scan range. The combination makes it very flexible for OCT imaging. Swept rates of either 50 kHz or 100 kHz with high stability are available. We provide both K-trigger and start-trigger for the system synchronization.
- Santec proprietary MEMS technology
- Wideband & long coherence length
- K-trigger integrated
- Unidirectional sweep
- OEM package & customization available
- Intraoral & dental imaging
- Anterior chamber ophthalmic imaging
- Cardiovascular and endoscopic imaging
- Laser-weld monitoring
- In-line inspection for industrial products
- Center wavelength: 1310 nm
- Maximum output power: ≧ 40 mW
- Scan range: ≧ 105 nm
- Scan rate: 50 kHz / 100 kHz
- Coherence length : ≧ 16 mm / ≧ 20 mm
Scan Characteristics
1310nm , High Accuracy Model
HSL-2100
Santecʼs polygon scanner technology provides a unique, highly repeatable, linear scan. High quality OCT images can be generated without K-clock sampling which significantly reduces system complexity and cost. The wide scan range enables extremely good axial resolution. OEM versions are available and these are widely used in FDA approved medical systems.
- Wide scan range, up to 170 nm
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Scan speeds from 3 kHz to 50 kHz
- High linearity and high repeatability
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Compatible with standard data acquisition cards
- High resolution imaging
- Wafer thickness measurement and profiling
- Low cost imaging systems
- Center wavelength: 1310 nm
- Maximum output power: > 20 mW
- Scan range: ≧ 170 nm
- Scan rate: 20 kHz
- Coherence length : ≧ 6mm
