SNR of swept SLEDs and swept lasers for OCT

Frequency comb swept lasers.

We demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FC-FDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep rate of 1kHz and 120kHz, respectively over a 135nm tuning range centered at 1310nm with average output powers of 50mW. A 25GHz free spectral range frequency comb filter in the s...

Swept-Source OCT Angiography: SS OCT AngioTM

New Swept-Source OCT for Glaucoma: Improvements and Advantages

When we refer to sweptsource optical coherence tomography (SS-OCT), “swept source” refers to the type of laser incorporated into the device. Instead of the superluminescent diode laser typical of conventional spectral domain OCT (SD-OCT), SS-OCT uses a short-cavity swept laser. Although the swept-source laser has a wavelength centered at approximately 1 μm, the laser actually changes, because i...

Frequency Comb Swept Lasers for Optical Coherence Tomography

We demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FCFDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep rate of 1kHz and 120kHz, respectively, over a 135nm tuning range centered at 1310nm with average output powers of 50mW. A 25GHz free spectral range frequency comb filter in the c...

Swept-source OCT angiography of macular telangiectasia type 2.

BACKGROUND AND OBJECTIVE To evaluate the central macular microvascular network in patients with macular telangiectasia type 2 (MacTel2) using optical coherence tomography (OCT)-based microangiography (OMAG). PATIENTS AND METHODS Prospective, observational study of patients with MacTel2 evaluated using a swept-source OCT (SS-OCT) prototype. OMAG was performed using a 3 mm × 3 mm central foveal...