4500T1Su07 - Gen. Questions Velocities Refracted Wave Prism...

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Gen. Questions (10) Name ____________________ Velocities (14) (Please Print) Refracted Wave (14) Prism (14) Power in Fiber (16) Laser Cavities (16) E C E 4500 Concave Mirror (16) First Examination June 15, 2007 Rules for exam: 1. The time allowed is 80 minutes. The test will start at 9:15am and end at 10:35am. 2. Answer all questions. The value of each question is given in parentheses by the question. There are a total of 100 points possible. 3. All work must be shown for full credit. 4. Put your final answers in the locations specified. 5. You may use the six single-sided 8 1/2" x 11" information sheets that you have prepared in your own hand writing. 6. Some physical constants are given below. 7. You may use one "book of math tables" or calculus textbook. 8. You may use a "pocket calculator" that can be put in a normal-size pocket and requires no external electrical power. Graphing calculators and programmable calculators are acceptable. You may not use portable, hand-held, lap-top, or notebook computers or wireless or network connections. 9. You may not use any reference materials other than those listed above. Therefore, you may not use the class notes, any textbooks, homework problems, reprints of papers, journals, prayer books, etc. 10. There is to be no sharing of anything. 11. If excess information is given in a question, ignore the unneeded information. 12. If too little information is given in a question, assume the information needed and clearly note this with your work. 13. Any changes to the examination will be written on the board. Check the board periodically during the examination. 14. Any acts of dishonesty will be referred to the Dean of Students without prior discussion. The official written Institute procedures on academic honesty (entitled "Maintaining Academic Honesty" and available from the Dean of Students Office) will be followed in all cases. 15. Have a happy exam! h = 6.6260755 × 10 -34 joule-sec c = 2.99792458 × 10 8 meter / sec e = 1.6021773349 × 10 -19 coul k = 1.38065812 × 10 -23 joule / K
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General Optical Engineering Acronyms Give the meanings of the following acronyms: FTIR = DBR = MCT = Arrayed Waveguide Grating Router The arrayed waveguide grating router is capable of the following operations: (Circle all that apply.) (a) Appendectomy (b) Demultiplexing (c) Lobotomy (d) Multiplexing (e) Add-Drop Multiplexing (f) Colonoscopy (g) Full N × N Interconnection (h) None of the Above Compact Disk (CD) A semiconductor laser of freespace wavelength λ = 500 nm is used in a compact disk reader. The pits on the disk have a depth of approximately: (Circle the one best answer.) (a) 100 μm (b) 10 μm (c) 1 . 0 μm (d) λ/ 8 (e) λ/ 4 (f) λ/ 2 (g) λ (h) None of the above.
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Photometric Quantities A particular modern 20 watt fuorescent screw-in bulb is equivalent in luminous power to a 75 watt incandescent bulb. The luminous power oF this fuorescent bulb is approximately: (Circle the one best answer.) (a) 500 footcandles (b) 50 footcandles (c) 5 footcandles (d) 12 , 000 lumens (e) 1 , 200 lumens (F) 120 lumens (g) 12 lumens (h) None oF the above.
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Phase Velocity and Group Velocity A pulse of light of freespace wavelength λ is propagating in a bulk dielectric of refractive index n . The duration of the pulse is
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4500T1Su07 - Gen. Questions Velocities Refracted Wave Prism...

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