Pulse shaping device and pulse shaping method

A pulse shaping device comprising:

• a pulse generator configured to generate pulsed light by using a semiconductor laser for emitting light with a wavelength ranging from 350 nm to 500 nm;
• a quartz glass block provided in a subsequent stage of the pulse generator;
• and
• a mirror disposed on at least one of previous and subsequent stages of the quartz glass block and configured to reflect pulsed light emitted from the pulse generator,
• wherein the pulsed light propagates through an inside of the quartz glass block only along a predetermined optical path length by being reflected by the mirror.

A pulse shaping device comprising:

• a pulse generator configured to generate pulsed light by using a semiconductor laser for emitting light with a wavelength ranging from 350 nm to 500 nm;
• a single-mode optical fiber provided in a subsequent stage of the pulse generator;
• a first lens configured to guide the pulsed light to the single-mode optical fiber;
• and
• a second lens configured to emit the pulsed light from the single-mode optical fiber.

A pulse shaping method comprising:

• generating pulsed light by using a semiconductor laser for emitting light of a predetermined wavelength;
• and
• compressing a pulse time width of the pulsed light by allowing the pulsed light to pass through an inside of an optical member,
• wherein the pulsed light has a first frequency dispersion state, and
• wherein the optical member imparts a second frequency dispersion state to the pulsed light, the second frequency dispersion state being a frequency dispersion state opposite to the first frequency dispersion state.