Table 2. Specs of the low-cost OCT engine and commercial OCT systems.
| Low-cost OCT | Wasatch | Callisto | |
|---|---|---|---|
| Price | $7,164 | $45,000a | $35,000 |
| System Specifications | |||
| Center Wavelength | 830 nm | 830 nm | 930 nm |
| Number of pixels per A-Scan | 512 | 1024 | 512 |
| SLD Bandwidth (3db FWHM) | 45 nm | 155 nm | |
| Maximum output power | 700 µW | 750 µW | |
| Imaging Performance | |||
| Imaging Depth (in air) | 2.8 mm | 1.9 mm | 1.7 mm |
| Axial resolution (in air) | 7.0 µm | 2.0 µm | 7.0 µm |
| Lateral resolution | 17.6 µm | 10 µm | 8 µm |
| A-scan rate | 8.8 kHz | 40 kHz | 1.2 kHz |
| Sensitivity | 99.4 dB | 100 dB | 107 dB |
| Scan range (X and Y) | 7 mm | 5 mm | 10 mm |
| Form Factor | |||
| Weight (with PC) (without PC) |
6 lbs | 44 lbs 19 lbs |
27.6 lbs |
| Volume | 13.7 x 7.5 x 5.1 in3 (with PC) |
16.8 x 13.2 x 5.2 in3 (without PC) |
12.6 x 5.9 x 16.55 in3 (without PC) |
a
Price from 2013 purchase.