3A-IS、PE50BB-DIF-C传感器OPHIR优惠全新

description: 

the l40(250)a-bb-50 is a general purpose thermal power/energylaser measurement sensor with a 50mm aperture. it can measure from300mw to 35w continuously and to 250w intermittently. it canmeasure energy from 100mj to 4000j. it has the spectrally flatbroadband coating and covers the spectral range from 0.19 to 20µm.the sensor comes with a standard 1.5 meter cable for connecting toa meter or pc interface.

model

l40(250)a-bb-50

l40(250)a-lp2-50

l40(200)a-ex-50

l40(500)a-lp2-dif-35

use

general purpose

cw and long pulse lasers  

excimer lasers

concentrated beams

absorber type

broadband

lp2

ex

lp2 + diffuser

spectral range µm

0.19 - 20

0.25 - 2.2, 2.94

0.15 - 0.7, 10.6

0.44 - 2.2 (c)

absorption

~88%

>94% from 0.25 to 1.1µm

~95%

~14% backscatter from diffuser

aperture mm

Ø50mm

Ø50mm

Ø50 mm

Ø35mm

power mode

power range

300mw - 250w (b)

300mw - 250w (b)

300mw - 200w

300mw - 500w (b)

maximum intermittent power

250w for 1.5min, 150w for 3min, 80w for 6min, 35w continuous(b)

250w for 1.5min, 150w for

3min, 80w for 6min, 40w

continuous (b)

200w for 1.5min, 150w for 3min, 80w for 6min, 35w continuous

500w for 45s, 250w for 1.5min,

150w for 3min, 80w for 6min,

40 continuous (b)

power scales

250w / 30w

250w / 30w

200w / 20w

500w / 50w

power noise level

15mw

15mw

15mw

20mw

maximum average power 

density kw/cm2   

10 at 250w 20 at 35w

20 at 250w 50 at 40w

1.5

>150 at 500w

response time with meter

(0-95%) typ. s  

2.5

2.5

2.5

2.5

power accuracy +/-%

3

3 (a)

3

3

linearity with power +/-%

1

1

1

1

beam size dependence

<1% for beams up to 35mm diameter

max beam diameter for 

gaussian beam

Ø35mm

Ø35mm for up to 30deg incidence

Ø35mm

Ø25mm for normal incidenceØ15mm for 20deg incidence (d)Ø10mm for 30deg incidence (d)

energy mode

energy range

100mj - 4000j

100mj - 10,000j

100mj - 200j

100mj - 2000j

energy scales

4kj / 400j / 40j / 4j

10kj / 1kj / 100j / 10j

200j / 30j / 3j

2kj / 200j / 20j / 2j

 energy accuracy

±5%

±5% 700 – 1100nm (a, b)

±5%

±5% 900 – 1100nm (b)

maximum exposure before cooling down is necessary

na

na

minimum energy mj

100

100

100

100

maximum energy density j/cm2

<100ns

0.3

0.1

0.5

3

1µs

0.4

0.9

0.6

3

0.5ms

5

50

6

10

2ms

10

130

12

20

10ms

30

400

25

30

>300ms

see below (b, c)

see below (b, c)

na

see below (b, e)

cooling

convection / ballistic

convection / ballistic

convection / ballistic

convection / ballistic

fiber adapters available

st, fc, sma, sc

st, fc, sma, sc

na

na

weight kg

0.6

0.8

0.6

0.6

compliance

ce, china rohs

ce, china rohs

ce, china rohs

ce, china rohs

part number

7z02793

7z02794

7z02795

7z02797

notes: (a) above 1.1µm there is an additional calibrationuncertainty of up to 2% except at the additional calibration pointof 2.94µm where the additional uncertainty is 1%.

notes: (b) long pulses (0.5 – 4s) can be used to measure powerof high power lasers by measuring the energy of a short exposure.the starbright, juno, juno+ and centauri meters have a pulsed powermode where  the user may specify the pulse width and get areading directly in units of power for this short exposure energymeasurement. see also page 75

notes: (c) calibrated for 900 – 1100nm

notes: (d) at large angles of incidence, the position the beamhits the absorber should be offset into the direction of incidenceby 5-10mm for correct reading and at 20deg incidence the readingwill be 5% lower and  at 30deg incidence 10% lower

notes: (e) recommended exposure times and 1/e2  gaussianbeam diameters for  very long pulses. total energy for aseries  of measurements should not exceed 20kj  (*8kj).cooling down time before another  20kj (*8kj) series, 10min. recommended time between shots 12s.

* for l40(500)a-lp2-dif-35