Question

Laser

What component would you use to (choose from the list on the following page)

1._______________separate a gas from a vacuum but allow light to travel from one to the other with little or no effect on the light

2._______________direct a beam back in the direction from which it came

3._______________place in a laser cavity to limit output to a single longitudinal mode

4._______________"correct" a beam with an oval cross section, creating a circular cross section

5._______________filter all visible wavelengths by the same amount

6._______________pass only a narrow band of wavelengths in a beam of light

7._______________allow visible light to pass, but reflect IR

8._______________remove optical noise from a beam to produce a smooth, clean spot of light

9._______________prevent reflection from an optical element

10.______________pass all wavelengths except for a narrow band

11.______________create polarized light without the use of a polarizing filter

12.______________reduce or eliminate the divergence of a laser beam

13_______________ create long duration pulses from a cw laser beam

14_______________change the wavelength of light to half its previous value

15_______________change the wavelength of light by scattering in an optical fiber

16_______________divide a beam into two parts

17_______________ create circularly polarized light from linearly polarized light

18_______________ create a short laser pulse with high peak power

19_______________create a train of femtosecond (really, really short) pulses

20_______________rotate the direction of polarization using a voltage controlled device

LIST OF LASER ACCESSORIES

1. hot mirror
2. ND filter
3. spatial filter
4. AR coatings
5. narrow band transmission filter
6. notch filter
7. collimator, or telescope
8. retroreflector
9. Beam splitter
10. Window
11. Brewster window
12. retarder (wave plate)
13. etalon
14. Cylindrical lens
15. Pockels cell
16. second harmonic generation (SHG) crystal
17. mechanical chopper
18. Q switch
19. mode locker
20. Cascaded raman resonator

Answer 1

1. Etalon

2. Retroreflector

3. Nd filter

4. Collimator

5. Window

6. narrow band transmission filter

7. Hot mirror

8. Spatial filters

9. Ar coating

10. Notch filter

11. Brewster window

12. Cylindrical lens

13. Mechanical chopper

14. second harmonic generation (SHG) crystal

15. Cascaded raman resonator

16. Beam splitter

17. Retarder

18. Q switch

19. Mode locker

20. Pockels cell