Facet erosion is a gradual degradation occurring over a longer period  terjemahan - Facet erosion is a gradual degradation occurring over a longer period  Bahasa Indonesia Bagaimana mengatakan

Facet erosion is a gradual degradat

Facet erosion is a gradual degradation occurring over a longer period of
time than catastrophic facet damage. The decrease in mirror reflectivity and the
increase in nonradiative recombination at the facets owing to facet erosion
lower the internal quantum efficienqr of the laser and increase the threshold
current. In GaAlAs lasers facet erosion arises from oxidation of the mirror
Surface. It is speculated that the oxidation process is stimulated by the optical
radiation emitted from the laser. Facet erosion is minimized by depositing a
half-wavelength-thick Al2o3 film on the facet. This type of coating acts as a
moisture barrier and does not affect the mirror reflectivity or the lasing
threshold current.
A Comparison of two definitions of failure for laser diodes operating at
70° C is shown in Fig. 4-41. The lower curve shows the time required for the
laser output to drop to one-half its initial value when a constant current passes
through the device. This is the "3-dB life.
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Hasil (Bahasa Indonesia) 1: [Salinan]
Disalin!
Facet erosion is a gradual degradation occurring over a longer period of
time than catastrophic facet damage. The decrease in mirror reflectivity and the
increase in nonradiative recombination at the facets owing to facet erosion
lower the internal quantum efficienqr of the laser and increase the threshold
current. In GaAlAs lasers facet erosion arises from oxidation of the mirror
Surface. It is speculated that the oxidation process is stimulated by the optical
radiation emitted from the laser. Facet erosion is minimized by depositing a
half-wavelength-thick Al2o3 film on the facet. This type of coating acts as a
moisture barrier and does not affect the mirror reflectivity or the lasing
threshold current.
A Comparison of two definitions of failure for laser diodes operating at
70° C is shown in Fig. 4-41. The lower curve shows the time required for the
laser output to drop to one-half its initial value when a constant current passes
through the device. This is the "3-dB life.
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Hasil (Bahasa Indonesia) 2:[Salinan]
Disalin!
Erosi Facet adalah degradasi bertahap yang terjadi selama jangka waktu yang lebih
lama daripada segi kerusakan bencana. Penurunan cermin refleks ectivity dan
peningkatan rekombinasi nonradiative di sisi karena erosi segi
menurunkan internal kuantum e fi cienqr laser dan meningkatkan ambang batas
saat ini. Dalam GaAlAs erosi laser segi muncul dari oksidasi cermin
Permukaan. Hal ini berspekulasi bahwa proses oksidasi dirangsang oleh optik
radiasi yang dipancarkan dari laser. Erosi Facet diminimalkan dengan mendepositokan
-setengah panjang gelombang tebal Al2O3 fi lm di segi tersebut. Jenis lapisan bertindak sebagai
penghalang kelembaban dan tidak mempengaruhi cermin refleks ectivity atau penguat
ambang saat ini.
Perbandingan dua de Definisi kegagalan untuk dioda laser beroperasi pada
70 ° C ditunjukkan pada Gambar. 4-41. Kurva yang lebih rendah menunjukkan waktu yang dibutuhkan untuk
output laser turun menjadi setengah nilai awalnya ketika arus konstan melewati
melalui perangkat. Ini adalah "hidup 3-dB.
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