We report on an akinetic actively-mode-locked wavelength-swept laser (ASL) with a sweep that is highly linear in wavenumber. By tailoring the drive waveform of the intracavity modulator, the wavenumber sweep was further linearized to enable high fidelity frequency-domain interferometric ranging without resampling of the acquired data. Used for catheter-based optical coherence tomography, the ASL showed comparable imaging performance to a state-of-the-art polygon-based wavelength-swept source at a matching sweep rate of 103.6 kHz, a duty cycle of 95%, and a bandwidth of 100 nm, centered at 1330 nm.

中文翻译：

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线性波数主动锁模波长扫描激光器

我们报告了一种动态扫描波长高度线性的主动锁模波长扫描激光器（ASL）。通过调整腔内调制器的驱动波形，波数扫描被进一步线性化，以实现高保真度的频域干涉测量，而无需重新采样采集的数据。ASL用于基于导管的光学相干断层扫描，在匹配的扫描速率103.6 kHz，占空比95％和带宽的情况下，显示出与基于多边形的最新波长扫描源相当的成像性能100nm的波长为1330nm。