Full text loading...
(a) Experimental setup to generate SAC. BS: Beam splitter with at 800 nm, M1–M6: Mirrors with high-reflection coating at 800 nm, M7: Aluminum-coated mirror, L: Downcollimating lens, and SPF: Short-wavelength-pass filter. A typical picture (b) and the spectra (c) of the generated blue-green and red CCEs under infrared pump at 800 nm (without WLS seeding).
(a) Measured spectra of the blue-green CCE pumped by fundamental pulses after a variable attenuator to get variable intensities of (solid), (dashed), (dotted), and (dashed–dotted), respectively. (b) The angularly resolved spectra of the blue-green CCE. The spectra were recorded by selecting a small angular window (0.5 mrad) from the blue-green ring near , , , and , respectively.
Measured spectra of SAC when the pump intensity was (solid), (dashed), (dotted), and (dashed–dotted), respectively. The inset gives a typical picture of SAC observed as the WLS pulse was seeded at a conical angle , where a sparkling blue-green beam appeared along the blue-green CCE.
The SAC spectrum observed as the WLS pulse was seeded at a conical angle , where a red beam appeared inside the blue-green CCE, as shown in the inset.
Measured spectra of SAC under (a)negative and (b)positive delays between the pump and WLS pulses with respect to the zero-delay position: (solid line), (dashed line), and (dotted line), where the zero-delay position corresponds to the delay at the maximum generation of the blue-green SAC.
Article metrics loading...