Lecture 3A - Laser Sources Flashcards by Jeremy Wong

Q

CO2 applications

A

SLA, SLM, SLS, LENS

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Q

CO2 operation wavelength

A

9.4 & 10.6 μm

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Q

CO2 efficiency

A

5-20%

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Q

CO2 output power

A

up to 20kW

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Q

CO2 pump source

A

electrical discharge

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Q

CO2 operation mode

A

CW & pulse

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Q

CO2 pulse duration

A

100’s ns - 10’s μs

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Q

CO2 beam quality factor

A

3-5 mm*mrad

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Q

CO2 fiber delivery

A

not possible

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Q

CO2 maintenance periods

A

2000 hrs

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Q

Nd:YAG application

A

SLM, SLS, LENS

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Q

Nd:YAG operation wavelength

A

1.06 μm

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Q

Nd:YAG efficiency

A

lamp pump: 1-3%
diode pump: 10-20%

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Q

Nd:YAG output power

A

Up to 16 kW

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Q

Nd:YAG pump source

A

flashlight or laser diode

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Q

Nd:YAG operation mode

A

CW & pulse

Q

Nd:YAG pulse duration

A

few ns - 10’s ms

Q

Nd:YAG beam quality factor

A

0.4-20 mm*mrad

Q

Nd:YAG fiber delivery

A

possible

Q

Nd:YAG maintenance periods

A

200 hrs (lamp life)
10,000 hrs (diode life)

Q

Yb-fiber application

A

SLM, SLS, LENS

Q

Yb-fiber operation wavelength

A

1.07 μm

Q

Yb-fiber efficiency

A

10-30%

Q

Yb-fiber output power

A

up to 10kW

Q

Yb-fiber pump source

A

laser diode

Q

Yb-fiber operation mode

A

CW & Pulse

Q

Yb-fiber pulse duration

A

10’s ns - 10’s ms

Q

Yb-fiber beam quality factor

A

0.3 - 4 mm*mrad

Q

Yb-fiber fiber delivery

A

possible

Q

Yb-fiber maintenance period

A

maintenance free (25,000 hrs)

Q

excimer applications

A

SLA

Q

excimer operation wavelength

A

193, 248, 308 nm
ArF, KrF, XeCl

Q

excimer efficiency

A

1-4%

Q

excimer output power

A

300 W

Q

excimer pump source

A

excimer recombination via electrical discharge

Q

excimer operation mode

A

pulse

Q

excimer pulse duration

A

10’s ns

Q

excimer beam quality factor

A

160 x 20 mm*mrad
(vert x horizontal)

Q

excimer fiber delivery

A

specially designed fiber necessary